Every once in a while, a blip on the radar comes up, letting us know that there’s something not quite right in our little corner of the Mac Universe. This time around, it came in the form of Tweets directed to us, as well as in posting in popular Mac forums.
As it turns out, several other memory vendors—along with some Late 08 MacBook/MacBook Pro users—have laid claim to these machines working with 8GB of RAM. This was contradictory to our testing in December 2009 which quite clearly showed that while these models recognized a full 8GB, if an application addressed more than 6GB, the system would slow down significantly.
Not being the type to just let these sorts of claims to go unchallenged, we went back to our testing lab, grabbed the affected model machines, running 10.6.6. and dropped an 8GB upgrade kit in them.
Related: See All Upgrades Compatible with Your Mac with My Upgrades Tool
The results were exactly the same as in 2009, lending credence to our conclusions, but the sheer number of claims to the contrary led us to continue searching—and the trail ended at Apple.
In late 2009, an EFI Firmware Update was released to address the buzzing noises coming from the optical drive. However, it seems that somewhere along the line, Apple changed this update without notating it anywhere.
Whether any other elements were affected by this change is undetermined, but it did change memory addressing; with the later version of the update installed, you could address a full 8GB in Snow Leopard. Unfortunately, Software Update doesn’t show this version as being different from the previous one, so users wouldn’t be notified if they had already updated their firmware to the older version.
The practical upshot of all this is that if you installed the EFI Update when it first came out, like we did, you would have gotten the old code, which meant your computer would only address 6GB properly. Those who didn’t upgrade until after Apple changed the updater got the newer firmware, which allowed proper addressing of 8GB.
Once we manually installed the “updated” version of the EFI Firmware in our test machines, they were able to address 8GB normally, without any crashing or slowdowns.
How do you ensure your Late ‘08 MacBook/MacBook Pro can address 8GB of RAM?
First, you want to make sure you have one of the affected models:
- MacBook 13.3″ 2.0GHz and 2.4GHz
- MacBook Pro 15″ 2.4GHz model w/ExpressCard Slot
- MacBook Pro 15″ 2.53GHz model w/ExpressCard Slot
- MacBook Pro 15″ 2.66GHz model w/ExpressCard Slot
- MacBook Pro 15″ 2.8GHz model w/ExpressCard Slot
- MacBook Pro 15″ 2.93GHz model w/ExpressCard Slot
Next, check the Boot ROM Version in your System Profiler.
- MacBook Pros with a Model ID of MacBookPro5,1 should have a Boot ROM Version of MBP51.007E.B05.
- MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03
- Machines with other Model IDs are not affected and don’t need an update.
- **IMPORTANT NOTE: EFI Firmware Update 2.8 was released on February 28, 2012 for the Later 2008 MacBook Pro. If you have installed that update, your Boot ROM version will be MBP51.007E.B06. If you have this update installed, you’re already able to install the 8GB without any problems and don’t need to perform further updates to install more RAM.
If your Boot ROM version does not match the numbers above, download the appropriate firmware updater for your model machine and install according to the instructions:
- For MacBook Pros (MacBookPro5,1)
MacBook Pro EFI Firmware Update 1.8 - For MacBooks (MacBook5,1)
MacBook EFI Firmware Update 1.4
Once you have ensured that the Boot ROM is the correct version, make sure your Operating System is updated to OSX 10.6.6. You must be running Snow Leopard or later to address 8GB on these systems, and our testing was done with 10.6.6, which is the earliest version we’re currently supporting for this.
Pardon us for our initial skepticism on this larger memory capacity finding. We had some pretty good reasons for it. First, this is the first time in our recollection that an EFI update and a dot version OS update both combined to affect memory addressing. Secondly, this reminded us of when after we were the first to qualify 2007-2009 Core 2 Duo MacBook Pro and MacBook models supporting 6GB max without experiencing a dramatic system slowdown, certain memory resellers pushed the same idea about 8GB compatibility.
Or in other shorter words, if we can’t prove either benchmark performance gains and/or system stability, we’re just not going to market a memory upgrade just to pad our MaxRAM credentials.
Your trust in us is more important than any other objective here.
UPDATE – FURTHER CLARIFICATION
Judging by the sheer number of comments, there seems to be some confusion as to which MacBooks and MacBook Pros this update applies to. We’ve created a simple flowchart that should help clear up some of the confusion.
UPDATE: FEBRUARY 2012
EFI Firmware Update 2.8 was released on February 28, 2012 for the MacBook Pro, to resolve graphics issues. It does not disable the 8GB compatibility the previous firmware revision granted.
Note that in addition to the listed models, MacBookEFIUpdate 1.4 allows a MacBook5,2 (Mid 2009) to use 8GB RAM. After update, the boot ROM version is MB52.088.B05.
I should also mention that not all brands of DDR2 RAM will boot in a Mac. Some PC RAM isn’t recognized. If your Mac is beeping every 5 seconds, the RAM isn’t recognized, and your Mac thinks there is none installed. Buy RAM tested for Mac compatibility.
Hi, similar situation as Jhon here, but my mac is a A1286 late 2011 15 inch. Mac OS High Sierra 10.13.6 Boot ROM Version: 87.0.0.0.0 . Downloaded the MacBook Pro EFI Firmware Update 1.8 but won’t install on the computer. any tips?
Hi guys!
My MB 13, late 2008, runs OS X El Capitan, with boot ROM MB51.007D.B03.
With 8gb the computer won’t turn on & beeps 3 times in succession.
The EFI update for MB 5,1 won’t install on the computer, so I’m left thinking that I need to downgrade my OS?
Any thoughts please about this?
Hello
I have a Early 13 inch Macbook 4,1 – 2.1 Intel Core 2 Duo with 4 GB 667 MHz – my question will this firmware upgrade work in the Early model I have?
This article is really what I was looking for! Thank you! I am upgrading my daughter’s computer thanks to you!
May I ask you a question: what about upgrading a MacBook Pro 2,2 (2006, A1211), Mac OS X 10.7.5, to 8GB of memory RAM? Or at least 4GB? The boot ROM is MBP22.00A5.B07GB. Is is worth it?
Thanks for your help!
Cordially,
hello …
how do I install an efi uodate on my new ssd ?
when I start my mbp unibody it will show ( ? )
with the alt key it will not show any thing ….
after putting an efi file from a linux knoppix
and alt > it will show a windows hdd …
to put the pointer on
and press
then the screen goes black
then after more then a minute
a gray screen starts
and the message >
” Remove data carrier
restart: press any key ”
can I copy the mac efi update 2.8
directly in the > efi partion ?
of this san disk 120gb ssd
and how can I install a smd update ?
before installing os 10.5.6
.
Late 2008 Macbook 5,1 MB51.007D.B03 SMC Version (system): 1.32f8. Installed 2 x 4GB Ram one slot reading and the other says empty. Reinstalled the 2 x 2 GB Ram both slots work fine. Am I missing something on installing the RAM to have 8GB?
We are sorry to hear about your troubles. The first thing you will want to do is check and make sure that you are running Mac OS 10.6.6 or newer. If you are, please contact our Technical Support Team and we will be happy to assist you further.
I have an 08 15 inch MacBook Pro that I upgraded RAM to 8GB and installed a 480GB SSD. The 11 year old machine is very spry now. Boots up in 28 seconds and moves through applications swiftly. I use it as the media server for my home network. Got all my information and supplies from OWC/MacSales. They have kept ALL my Macs running for 11 years now.
I’m trying to update my firmware on MacBook 5.1, is there a way to do this? The download link on Apple doesn’t work.
Hi everyone; I have a MacBook Late 2008 with Boot ROM version of MB51.007D.B03 however when I download **For MacBooks (MacBook5,1) MacBook EFI Firmware Update 1.4** it says **This computer does not need this update.** What’s the problem you think? Thank you!
Actually, from what I understand, boot ROM version MB51.007D.B03 is already EFI 1.4 update.That’s probably why you get this message. All the same, you can still download the SMC update, if necessary. See here: https://support.apple.com/fr-fr/HT201518#macbook
If I change the OS to Ubuntu will I still be able to use 8GB of Ram?
Have a late 2008 unibody Macbook with Boot ROM Version: MB51.007D.B03 and SMC 1.40f2. Would upgrading to 8 GB work here? And what would be the highest OSx that one can run it with for 8GB to work properly? The laptop is currently on 10.7.5 and I am hesitant upgrading it to 10.11 if 8 GB do not work on it. Which lower OSx version would support 8GB? Thanks for your help.
Hi, for detailed answers to all of these questions please contact our customer support team and they will certainly be able to assist you. Thanks!
Hi there, I’ve been trying to do this for a while. I have a MB late 2008 with:
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
And i’ve 2 4gb ram but it shows like i’ve only 2 2gb ram. I am funning osx 10.8.5 with and ssd and I would love to upgrade the osx, how can i fix this?
thanx in advance.
Hi, Bruno. Please reach out to our customer service team who can best assist you with this issue: https://eshop.macsales.com/Service/
Thanks!
After installing MacBook EFI Firmware Update 1.4, each time the computer is booted it displays a popup notification informing me that the firmware has been updated.
Does anyone know how to disable this?
I just did it, now my MacBook 13 inch, Aluminum Late 2008, Processor 2 GHz intel core 2 Duo is showing the 8 GB 1067 MHz DDR3,
it’s working.
How about RAM speed? Will it matter to get 1333mhz or 1600mhz?
sorry, can’t find an option to delete this. found the answer in the comments. just took some time as there are a number of them. there are claims that 1333mhz works. I ordered it and waiting for it to be delivered.
I’ve got an MBP unibody, late 2008, and it takes 8GB, no problem, in fact, it did back in 2010, before the update. I highly suggest that anyone with a model this old keeps a 10.6.8 partition, since anything newer runs INCREDIBLY slower. If you need support for newer apps, run 10.10.X, anything newer is WAY too slow. 10.9 is actually the slowest of all. Don’t even bother with Lion or Mountain Lion, and forget 10.11 and 10.12.
I’m a bit confused by the article. My friend has a late 2008 Macbook 4,1. I read that Apple’s official specs say 4GB, and some other sources say 6. I know from years of experience that Apple always lowballs it. But, does article mean that it can indeed take 8? If i put in 8, and it doesn’t recognize all 8, will it just not boot, or will it run as if it only had 6?
Thank you for your great questions! The 2008 MacBook 4,1 will be compatible with up to 6GBs of RAM. If you were to put 8GBs in, your system would slow down significantly and only show as 6GBs.
Please let us know if you have any further questions!
I have same one, so it means i can put 4gb in 1st slot and 2gb in 2nd one?
Hi, Vlad. That is correct. Here is a link to the correct kit for the 2008 MacBook 4,1 can be found here: https://eshop.macsales.com/item/OWC/5300DDR2S6GP/
So i have a aluminum body late 2008 macbook, model ID MacBook5,1 and Boot ROM version of MB51.007D.B03 but for some reason when i tried to upgrade to 8GB of ram my macbook won’t start i get an error msg and tries to restart again. any ideas on what the issue could be???
Hi there :)
I just acquired a MBP 17″ A1261 2.5 Ghz 4Gb 250gb 1920×1200 10.11.5 OSX El Capitan.
I’m new to all this and would really appreciate your help. :) I will mainly use it to move my daughter’s choir performances, church worship (4 years’ worth) from the cloud to cd’s for grandparents, and pictures of trips from the cloud to cd – and create family videos and watching movies/videos with family aside from work and adding music. Before I start putting anything on it, should I upgrade it to 6gb or 8gb? How should I do it – where should I get help? Also – 250gb might not be enough to hold all of these – so should I upgrade that as well to 500gb? Will that slow the computer down? How much does all of these cost?
Thank you so much for your help!!! I need some guidance and help :) !
Hi, Caroline. To get the best performance from your Mac, we highly recommend installing the maximum amount compatible with your model. And if you would like a large amount of storage that will bring better performance to your Mac, an OWC SSD will do wonders for your Mac. Our My Upgrades tool will show you exactly which upgrades are compatible with your Mac. It can be found here: https://eshop.macsales.com/upgrades/. You can also reach out to our helpful customer service team for additional support. Thanks!
Hardware Overview:
——————–
Model Name: MacBook
Model Identifier: MacBook 5,2
Processor Name: Intel Core 2 Duo
Processor Speed: 2GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB52.0088.B05 (EFI 1.4)
SMC Version (System): 1.38f5
Serial Number: W8915F934R1
Hardware UUUID: 86402231-7C6A-578E-A7D8-00ABABE4F83C
Sudden Motion Sensor:
State: Enabled
OSX 10.10.X (Yosemite)
——————————————-
Can I upgrade from 2 GB to 8 GB of Memory or limit myself to 6 GB? Seems to be two different school of thought as to what the max memory should be for the MacBook 5,2.
Hi, David. The maximum amount of memory compatible with your MacBook is 6GB. You can find the proper kit here: https://eshop.macsales.com/upgrades/macbook-13-inch-early-2009-2.0-ghz/Memory?&sort.price=desc Feel free to contact our helpful customer service team if you have any more questions!
Loved this article.
I’ve had a 2008 MBP since new and love it.
Installed SL over 10.5.5 Leopard just to use certain connectivity and think it’s great.
The old stock RAM is getting wonky with SBOD and suspect the RAM.
The firmware, as with all apple products, is the key.
I am ordering 2x4g Crucial and revamp a classic oldie lapper.
Thanks again for the writeup and comments here..
Hi, I have a MBP version 5,1 running 10.11.6 with Boot ROM Version: MBP51.007E.B06. I can only upgrade the ram to 6 GB, 2gb in one slot and 4gb in another. When I try 8gb it beeps and won’t boot. What is the reason? Is it the make of RAM?
Thank you for your question! We would love to speak with you further and see why 8GBs is not working. Please contact our Technical Support Team and we will be happy to assist you.
I have the same issue as Bevis, but my macbook is the MB 5,1 with the boot ROM MB51.007D.B03 and running El Capitan.
I can have the 2G+4GB but not the 4GB+4GB.
Did you managed to fixe it?
Thanks
same issue as Francisco. I have the late 2008 unibody, running MB51.007D.B03 and it will only let me use 6GB of RAM, 2 in the top slot, 4 in the bottom. Ram is Crucial 4GB DDR3 1067 and it just beeps when I try to boot with 8GB installed. Not sure if 6GB is faster than the 4GB since its mismatched.
Also should note im running OS X El Captain version 10.11.6
From the looks of other comments on page 8, this is likely the issue and I haven’t seen a fix noted in past responses. Might need to look into downgrading the OS and trying again
Thank you for the information to upgrade to 8 GB. I have a late 2008 aluminum macbook. It has the same Boot Rom version you stated in your great article… I’m running “lion” 10.7.5. Do I need to upgrade to El Capital first? Or I can I upload the 8GB with “Lion” as of now. Planning to upgrade to El Capitan (or newer versions that can support this laptop) – but should I upgrade the GB’s now or do suggest upgrading to El Capital prior to installing the 8 GB? Thank you so much for any feedback you can give. Lastly, may be a stupid question, but do I need to check for the EFI firmware? I think that’s the Boot Ram I now have that you suggest prior to installing 8GB. Hope I”m making sense. Thank you again!
Thank you so much for your questions. As you have the MacBook 5,1, have matched the Boot ROM version and running 10.6.8 or later you will be able to upgrade to 8GBs without any problems. We suggest that you upgrade the RAM before upgrading to El Capitan.
Please let us know if you have any further questions.
Hi,
I’ve got a MacBook 5,1 2008 Late. 2GHz with 4gb RAM. Boot ROM Version: MB51.007D.B03.
I’m running El Capitan.
If I try to install the 2.8 firmware it says “The computer does not need this update”
Can I still put 8gb ram into my macbook? Will it work?
Thanks
Thank you for your question! You will still be able to upgrade to 8GBs of RAM!
Please let is know if you have any further questions.
Hi I have a 13 inch Max pr (mid 2009) with 4GB 1067 MHz DDR3. I have just updated the OS to 10.11.6. Can I upgrade to 8GB RAM? If so which prodcut would I need to do this? Could i just get another 4GB such as this: macupgrades.co.uk/store/product_info.php?products_id=953
Many thanks
Hi, Chris. The 13″ mid 2009 MacBook Pro is compatible with up to 8GB of RAM. In order to upgrade to 8GB, we would recommend the following kit of compatible RAM modules to maximize performance: https://eshop.macsales.com/item/OWC/8566DDR3S8GP/
If you have any further questions, please feel free to contact our customer support team.
Hi,I have followed your instructions but it doesn’t work for me. The laptop doesn’t load, it switches front light but it doesn’t goes on. If you can help me. My version is 10.11.6 Thanks
We are very sorry for any troubles Miguel. Please contact our Technical Support Team and we will be happy to help you!
Hey! Nice article. I just pulled my old macbook out of storage and am refurbishing it to use as a music interface. I had all this set up already and am running 8GB RAM, but I stayed on 10.6.6 because at the time when I was doing this upgrade I was told that if I go PAST this that the upgrade would cease to function properly and I would go back down to 4-6GB. Is this true? I really want to upgrade this laptop for use with newer programs, but I don’t want to lose my 8GB, Obviously. And on another note, what’s the best(highest) OS I should go too with this 5,1 Macbook. Thanks.
Is it possible to (efficiently) use 2 x 4GB, in a macbook Mid 2009 5,2 with ROM MB52.0088.B06, or is 6GB the top?
I have asked efficiently, becauseI have read that I can install 2x4GB, but if more than 6GB is accessed, performance drops of a cliff…
So…. Is 5,2 OK for 8GB, or should I go to 6GB?
Thank you so much for your question. In the MacBook 5,2 the maximum amount of RAM you will be able to use is 6GBs. We would not recommend going any higher.
Let us know if you have any further questions.
So my mac meets all of the above criteria. Can someone direct me to the precise product I need to max out my RAM? From what I can see I need 2 x 4Gb. Thanks a mil. Great article. very clear for those of use with novice tech literacy.
Hello, here is the correct memory upgrade kit for your Mac: https://eshop.macsales.com/item/OWC/8566DDR3S8GP/ Please feel free to contact our helpful customer support team if you need further assistance.
I have a [Apple MacBook “Core 2 Duo” 2.0 13″ (Unibody)] (i checked with EveryMac). Currently it has 2x2GB, which works. The OS version is 10.11 (El Capitan). When I try to use a Kingston KVR16LS11/4 [https://www.kingston.com/dataSheets/KVR16LS11_4.pdf] (4GB), the Mac emits [3 successive tones, a 5 second pause (repeating)]. System Profiler/Boot ROM version is MB51.007D.B03.
You can’t use Kingston for some reason that I do not remember.
will 204 pin ram work?
Can I use just one 8gb ram instead of 2 4gb?
Great question Jason! Using a single 8GB chip will not be compatible. You will have to use 2X4GBs!
hi, I have a MacBook5,1, with 4G ram and a500 SSD, the numbers I get are: MB51.007D.B03.
can I install 4 more Gs of RAM? I tried installing the EFI update but i get a message saying that my computer has no need of this update..
Hi, your MacBook is compatible with up to 8GB of memory.
Yes, you can. I have the same MacBook model with 8GB running
I’m trying to figure out if the MBP 15 inch I have is able to handle the 8 GB upgrade. The Boot ROM version is MBP53.00AC.B03. This appears to be the latest version available. Will this still work?
Thank you so much for your question! Your 15″ MacBook Pro will be compatible with 8GBs of RAM with Boot ROM version MBP53.00AC.B03!!
This blog is awesome!.
I am on a late 2008 10.9.5 with 2+2ram and firmware MB51.007D.B03
I am giving this girl a revival. New SSD and maybe new batt.
On firmware update Feb 28, 2012 I get Alert “This software is not supported on your system. ”
The philosophical question : Should I buy 4+4 ram together with new SDD drive and cruise in 10.9 for eternity?
Hi, Agustin! Thanks for the kind words. And you will definitely be able to extend the life of your late 2008 MacBook with more memory, an SSD, and a new battery. To help find the compatible upgrades for you, I suggest using our MyOWC search. There you can find the proper SSD, RAM and battery for your MacBook model. And if you have any questions, feel free to contact our https://eshop.macsales.com/Service/
!
I’m on El Capitan, late 2008 with MB51.0073.B06 ROM. Start-up freezes at around three-quarter of the bar (apple logo load screen) when I use two corsair ram units (2x4gb). When I use 1x4gb, 1x1gb it works just fine. Do you know how to fix this?
Same thing happened to me… I updated the ROM to the version that supports 8GB (I believe MB51.007D.B03)- it worked thereafter. This is for the Macbook 5,1 – aluminum version (late 2008)
With the last version of El Capitan my macbook only uses max 6GB of the 8GB avaliables inside. This only happen with the last version, since 2012 I´ve been using those 8GB…
Anybody knows what happened??
Thanksn in advance
Did you ever figure out a fix?
I’m on El Capitan, MBP Late 2008 with MBP51.007D.B06 ROM and 8gb I get 3 consecutive beeps. 6gb works just fine.
I’ve reseated RAM, checked both new sticks, PRAM reset, SMC Reset, etc.
Did you manage to get it working? My macbook (Same specs as yours) freezes when I use 2x4GB.
I have a MB aluminium late 2008 (MB51.007D.B03).
I have 8GB since 2012 but my computer only uses 6 of them since last El Capitan update, nothing about beeps…
Having the same issue here. 6gb works just fine , but once I insert 8gb I get the triple beeps.
I tried upgrading after downloading the firmware update to my MacBooks (MacBook5,1) but, it reads “this computer does not require this update”, event hough my current firmware is MB51.007D.B03 and I am running on el capitan.
Hello Christopher,
This is the correct Boot ROM version for your computer! You can upgrade the RAM at anytime!
If you have any further questions, please contact our Technical Support Team.
I am still having issues installing the firmware. Could you please provide a link or email to your Technical Support Team I may use to contact them? the the hyperlink “Technical Support Team” you added to your response does not work.
Hi, Christopher. Sorry about that. Here is a link for our Customer Service Team: https://eshop.macsales.com/Service/
Thanks!! Yall are awesome!! Keep up the great work
Hello,
My Boot Rom version is MB51.007D.B03. But when I attempt to install the update to my macbook(macbook5,1), a windows pops up that states “This computer does not need this update”. I am currently running el capitan version 10.11.15.
Thank you!! This has been very helpful!
Good Day to you, was planning to sell my Macbook til i saw this thread, might be keeping it for a while for now, here’s my specs:
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Kindly let me know if i can install 8gb RAM on my baby.. Cheers.
Hi, Al. Your MacBook5,1 is indeed compatible with 8GB of memory. Here is a link to the correct kit for your model: https://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Hello,
I have MacBook 13 inch Aluminium Lte 2008, 2,4 Ghz and boot rom version MB51.007D.B03 / macbook5,1.
It is possible to install 8GB ram on this macbook?
Hi, Dejan. Your MacBook model is compatible with 8GB of memory. Here is a link to the correct kit: http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/ Feel free to contact our customer service team with any further questions!
Thanks
Im still very confused, I understand something about because of my firmware in my macbook pro 2007 i cant have the 8 gigg, can I not like re install new firmware on it or something ? i am in process ro replacing loads of stuff in it,, ssd drive, new fan etc,, is there no way i can get the firmware chaned or something, and have the 8 gigg of ram,, ???????????? some one please explain to me like im stupid, cos i am lol :)
You cannot install more than 6GB of memory on your computer due to addressing limitations. This article does not apply to you, as you do not have a MacBook 5,1.
Hi there,
you wrote:
“Whether any other elements were affected by this change is undetermined, but it did change memory addressing; with the later version of the update installed, you could address a full 8GB in Snow Leopard. Unfortunately, Software Update doesn’t show this version as being different from the previous one, so users wouldn’t be notified if they had already updated their firmware to the older version.
The practical upshot of all this is that if you installed the EFI Update when it first came out, like we did, you would have gotten the old code, which meant your computer would only address 6GB properly. Those who didn’t upgrade until after Apple changed the updater got the newer firmware, which allowed proper addressing of 8GB”
So how do I know, if I have the old code of the >>first<< EFI-Update 1.4, since you say both the first update and the new EFI-Update 1.4 from 08.12.2009 do both show ROM MB51.007D.B03 for my MacBook5,1 ?
I don't know, if the previous owner of this MacBook had done the first EFI-Update like you did, which only addressed 6GB?
Here my specs:
– MacBook5,1
– 2 GHz
– 13"
– MB51.007D.B03
– SMC: 1.32f8
Thanks for your help
Spoogy
Hello Spoogy,
Your Boot ROM Version is correct and compatible! You’re already able to install the 8GB without any problems and don’t need to perform further updates.
If you have any further questions, please contact our Technical Support Team!
Hello Spoogy,
Your Boot ROM Version is correct and compatible! You’re already able to install the 8GB without any problems and don’t need to perform further updates.
If you have any further questions, please feel free to contact our Technical Support Team!
Hi Dyllon, thanks for your reply.
But I wanted to know something else :-)
This article said, that they had previously done the first EFI update 1.4 and could only handle 6 GB, even that the ROM Version showed MB51.007D.B03.
Only after they manually did the EFI update 1.4 again, which was silently updated by Apple, they could handle the 8 GB, event the ROM Version still showed MB51.007D.B03.
So how can I know, If I got the old MB51.007D.B03 or the new MB51.007D.B03 ?
I hope I could explain it clearly.
Thanks for your help!
Spoogy
Hello Spoogy,
We are very sorry for any confusion that has been caused. If you have Boot ROM version MB51.007D.B03, you will have the correct version for the 8GB upgrade kit. In the article when it states there was an older and a newer version that you can not tell the difference between, this was before Boot ROM version MB51.007D.B03.
To double check you can use the most up to date MacBook EFI Firmware Update 1.4. If this update does not work and states it is not needed, you will have assured that it is the correct one.
Please contact us if you have any further questions! We will be happy to help!
Thanks,
I´ll give it a try :-)
Just as a confirmation:
Installed 8GB without doing anything extra. It works like a charm.
Thanks for your support!
I have a late 2008 MacBook 5,1; 2.0 GHz; 2 GB; Boot Rom MB51.007D.B03. I am running OS X 10.5.8. I want to install 8 GBs RAM, and then start process of upgrading to latest version of OS X El Capitan. Can you please advise if this is an OK order to make the transition run smoothly?: 1. Upgrade to Snow Leopard, 2. Install 8 GBs, 3. Upgrade to El Capitan. Also, can you please advise on an SSD and where that potentially fits into this scenario. Thanks!
Hello vwibb,
Once you upgrade to Snow Leopard (10.6.6) you will want to make sure that you install the MacBook EFI Firmware Update 1.4. Once this is complete you will be ready to upgrade to El Capitan!
You can add an SSD at anytime during this process. We would recommend using the OWC Mercury Electra 3G SSD.
If you have any further questions, please feel free to contact our Technical Support Team!
I have a macbook same late 2008 aluminium version but i need to know the maximum speed and Hertz of memory i bought some hyperX but they don’t work but i have more just need specs i am already running OS 10.9.5 on A SSD Hard drive need help to maximum memory
Hello Jamar,
The maximum amount of RAM that you are able to have in a late 2008 MacBook will be 8GBs. The specs will be PC8500 DDR3 1066MHz 204 Pin.
If you have any further questions, please contact our Technical Support Team!
Hi, I have a macbook 5,1 late 08 2.4 GHz. It has the ROM version of MB51.007D.BO3. It has 4GB of RAM and running on EL CAPITAN. When trying to download the EFI File, I get the error saying I do not need this update. Any idea on what to do?
Hello Matt,
Your Boot ROM version will be compatible with upgrading to 8GBs of RAM.
If you have any further questions, please contact our Technical Support Team!
I have macbook 5,1 late 2008 13 inch 2.0 GHZ aluminum. it has the latest Boot ROM version of MB51.007D.B03. it runs latest EL CAPITAN. I installed 8GB (2X4GBs) PC3-8500 DDR3-1066 mhz. I still have no luck, it beeps and doesn’t boot on start. Any advice please?
Hello Sherif,
We would recommend installing the new RAM and running a PRAM Reset and a SMC Reset!
If you are still experiencing your computer beeping after these resets, please contact our Technical Support Team!
i have a macbook pro 2008 model,, id is macbook pro 3.1,, so according to the above graph this article doesnt apply to me, does that mean i can or cannot install 8 gigg, i currently have 4 gigg and have just upgraded to el capitan.. heres my spec,, help appreciated Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.16f11
Serial Number (system): W87350T4X92
Hardware UUID: 00000000-0000-0100-8000-001CB3A0C942
Sudden Motion Sensor:
State: Enabled
Hi, Graham. The MacBook Pro3,1 is compatible with up to 6GB of memory: http://eshop.macsales.com/item/Other%20World%20Computing/5300DDR2S6GP/ Please feel free to contact our Customer Service team if you have additional questions. Thanks!
ok thankyou, how would i install gigg, would i put a 4 gigg and a 2 gigg in ?does it matter witch slot ? Is there not a way way to update my firmware to allow 8 gigg?? Thankyou
Yes, first install the 4GB chip and then the 2GB chip. Be sure to check out our line of installation videos for additional instructions.
And 6GB is the maximum amount that is supported by your MacBook model. Let us know if you need any more help. Thanks!
Si cannot liek change the firmware to get 8 gigg, no ? but i can have 6 gigg ye ? i think in it now is 2 2 gigg slots by looks of it,, do you know what I need to buy, liek a 4 gigg an a 2 gigg i gues, but what are these called, sorry im clueless,, maybe i could email you direct to your customer services, sorry im a bit cluless.
Hello, I have a late 2008 macbook pro with rom MB51.007D.B03 and I have installed both 4gb memories succesfully, however I cant install the EFI update I get the error “This software is not supported in your system” I am using El Capitan 10.11.3, am I still required to install the update to have the memory properly working? Thank you.
If I’m not wrong… if you have the MB51.007D.B03 rom it means that you have a macbook and not a macbook pro.
Hello Jose,
Please check “about this mac” to see how much RAM you have installed. If you are showing 8GBs you are all set. If you see less then 8GBs, please contact our Technical Support Team!
Can I run 1 stick of 8gb or do I have to run 2 4gb?
Hi, Alexander. You will need to install a kit with two 4GB chips.
i’m using macbook 13 inch late 2008 Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
but this ram (Kingston DDR3 1600mAh 4GB Low Voltage Ram) causing it to make 3 beeps sound during booting
Hello Rexa,
The late 2008 MacBooks use PC8500 DDR3 1066MHz 204 Pin RAM. We would not recommend using any different RAM.
Please contact our Technical Support Team for any further questions!
Can I run 8gb on capitan on my late model 08 ?
Hi, Paul. What is the model ID on your MacBook? If you need assistance finding it, please read this Rocket Yard article: http://blog.macsales.com/26707-finding-your-macs-model-identifier-helps-you-find-right-upgrades
I have late 2008 Macbook MB51.007D.B03 with 2gb ram and I wanted to upgrade to 8gb but it keeps crashing on me I tried all the kernels upgrade but it says that this laptop doesn’t need one any ideas
Thanks
Hello Matty,
You will want to make sure that you first have a compatible MacBook. Only the late 2008 MacBook (5,1) will be compatible, not the late 2008 MacBook (4,1).
Please contact our Technical Support Team and we will be happy to look into this further with you!
I have late 2008 Macbook MB51.007D.B03 with 2.4 GHz and 4GB RAM. I would like to upgrade to 8GB RAM. When trying to install firmware EFI 1.4 says
computer does not need firmware update. 1) How do I go about purchasing and installing the 8GB RAM and 2) will this affect any Applecare /warranty issues?
Hello Emanuel,
Upgrading your computer does not affect any Applecare or warranty issues unless physical damage is caused by the installation of the upgrade.
At OWC we have videos showing how to properly install the 8GB RAM upgrade!
If you have any further questions, please contact our Technical Support Team!
Hello, I have the correct software, a late 2008 macbook 5,1, snow leopard 10.6.8, MB51.007D.B03 with 2.0 ghz. I installed two sticks of 4 GB ram (correct DDR3) and it just gives me a series of 3 beeps. I tried resets, cleaning, ect. and nothing works. If i leave in the old 2 gig with the newer 4, it will work off 6. Any suggestions?
Hello Gray,
We would recommend to contact our Technical Support Team for further troubleshooting!
Hi! I have a MacBook aluminium 13,3 late 2008 with MB51.007D.B03 and Yosemite os.
I installed 2x4gb samsung ddr3 1.333 Mhz 1.5v. The macbook works very fine but when the it uses more than 6 Gb something strange happens. For instance, the images opened by photoshop start to appear corrupted. I tested the 2 ram banks with my other new windows laptop and they work perfectly in every situation. In your opinion the efi is bugged or the issue is related to 1.333 Mhz frequency (instead of the 1.067 Mhz) of the ram I used?
Thank you!
Hello Stefano,
This does seem to be more of a hardware problem then a firmware problem. At OWC we only recommend the use of 1066MHz RAM in the late 2008 MacBook (5,1).
Please feel free to Technical Support Team if you have any further questions.
Thank you for your reply. I will test it with 2x4gb 1066 mhz ddr3 if I have the opportunity.
Ciao from Italy!
I think all the confusion is due to the “IMPORTANT NOTE” because it makes it look as if that is the ONLY relevant info that supersedes all that comes above and below it and if your BOOT ROM doesn’t match that version, than you won’t be able to use the 8 GB of RAM.
Also, the bullet point list is confusing because the 4 bullets are not part of a list (the third one down certainly doesn’t).
I would suggest you removed “Important note” and rephrased what follows to emphasize that if you have ANY of the boot ROM listed than you are good to go.
Also in the following paragraph, repeat that MBP51.007E.B05, MB51.007D.B03 and
MBP51.007E.B06 are ALL OK.
At the moment the way I read it is that only the LAST version is correct.
The “Further clarification” doesn’t help either as it stands. To clarify it list in the flow chart the versions that are supposed to work.
I have Model ID 5,1 and the boot ROM version mentioned in your **Important Note above. I tried to upgrade my RAM to 8 GB with two 4 GB SODIMM PC3-8500 memory boards but all I got was beeping when I attempted to boot my Mac. Why?
We would recommend to run a PRAM Reset and SMC Reset. If the RAM still does not work for you, please contact our Technical Support Team! We will be happy to help!
I did the PRAM (now NVRAM) and SMC resets and still No Joy. It was just after 8 PM CT when I restored my 4 GB memory and restarted. I’ll call tomorrow.
Hi. My macbook aluminium late 2008 its ok in firmware.
Which is the maximum allowed mhz in ram for my mac?
currently works on 1066mhz
Hello M.,
Thank you for your question. The maximum compatible RAM speed for the late 2008 Aluminum MacBook is 1066MHz.
If you have any further questions, please contact our Technical Support Team!
If I buy MacBook Pro, late 2008, 13 inch, using El Captain make a upgrade for 8Gb Ram without problems?
Hi Matheus, what is your MacBook’s model ID? Here’s an article that will help you find it if needed: http://blog.macsales.com/26707-finding-your-macs-model-identifier-helps-you-find-right-upgrades
Hi When trying to install firmware EFI 1.4 says
computer does not need firmware update.
Macbook alum late 2008 OSX EL CAPITAN
Boot Rom Ver. MB51.007D.B03
SMC VER. 1.40F2
Thanks.
Hello Mr A. Hernandez,
I have some good news for you! Your computer has the correct Boot ROM Version and will not beed to be updated!
If you have any further questions, please feel free to contact our Technical Support Team!
Thanks for your answer.
I will buy the memory.
Happy New Year 2016
HI This i what I got
Macbook alum late 2008 OSX EL CAPITAN
Boot Rom Ver. MB51.007D.B03
SMC VER. 1.40F2
I did not install any firmware and I was able to upgrade the Ram to: 8GB Kit 2×4 GB SO-DIMM 1333 MHz PC3-10600 DDR3 Memory (M471B5273DH0-CH9)
So far I don’t have any troubles my mac is running smooth,purring like a little kitten.
Thanks Mr. A.H.
quoi que je fait pour monterai la memoire de l’installation mobile
My Macbook Pro keeps saying “This computer does not need this update.” whenever I try to install the firmware update. It’s a 15” late 2008
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Anyone has an idea why this is happening?
Hello Ghana,
If you have Boot ROM version MBP51.007E.B06 you’re ready to install 8GB without any problems and don’t need to perform further updates to install more RAM.
Hi,
I am a bit confused. I have a MacBook 13.3″ (late 2008). The boot rom version is:
MB51.007D.BO3. Can I install the “OWC 8GB Memory Upgrade?”
I downloaded Apple’s EFI 1.4 Firmware Update. When I run it the message is: “This computer does not need this update.”
Can I install the “OWC 8GB Memory Upgrade?”
Sincerely,
Sy Bensky
Hello Sy,
In order to upgrade to 8GBs of RAM you will need to run the MacBook EFI Firmware Update 1.4. We are very sorry to hear that the EFI did not work for you at first. We would recommend to disconnect non-essential devices and use only the manufacturers keyboard and mouse to apply the update.
We would also recommend to quit all open applications and try the download again.
If this does not work, please feel free to contact our Technical Support Team!
Hi Dyllon,
Thanks for the reply.
I downloaded the EFI 1.4 firmware update, again.
I reboot the MacBook. There are no programs running, or peripheral devices attached.. I am using the built in monitor and trackpad. Same message: “This computer does not need this update.”
I am running El Capitan 10.11. Of 4.0GB of installed memory, OSX uses 2.4GB leaving only 1.6GB free. Could this be the problem?
Sincerely,
Sy
Hello Sy,
We are very sorry this update is still not working. If you can please contact our Technical Support we will be happy to further troubleshoot this with you!
i can see two replies that doesn’t make sense, you have the latest firmware mentioned in the article (MB51.007D.B03) which is needed to run a 2x4GB kit of DDR3 1066MHz, don’t buy faster or low voltage ram coz they would not work. NO UPDATE IS NEEDED
I have the late 2008 macbook 13,3″ and was going to install the EFI update to upgrade to 8gb capacity. Unfortunately the installer tells me that I dont need to install the EFI. I checked the System profiler and it tells me that I have the MB51.007D.B03. Why can’t I install the EFI?
I’m on OS X Yosemite 10.10.
Hello Andrea,
We are very sorry to hear that the EFI update is not working for you. We would recommend to disconnect non-essential devices and use only the manufacturers keyboard and mouse to apply the update.
We would also recommend to quit all open applications and try the download again.
If this does not work, please feel free to contact OWC!!
Hi Andrea
you don’t need to upgrade firmware
your mac is ready for 8GB OF RAM
read my comments on top.
Mr.A. Hernandez
Have the late 2008 macpro and Was going to upgrade to 4gb until I saw this. Was wondering if I go with 8gb and it is unstable can I simply uninstall it and go back without damage?
I am running yosemite and seem to meet all the criteria that you listed. Still a bit nervous.
I have been running with 8 GB for three years and it has been fine. El Capitan has beach ball taxed, my Macbook Pro 15 on occasion but usually because I have left too many apps open.
Hello Susan,
If upgrading to 8GBs does not work for you, there is no problems going back to the 4GBs or 2GBs. That being said, upgrading to 8GBs will only improve your computer!
If you have any questions, please contact our Technical Support Team!
Hi,
I have the following:
– MacBook Pro
– MacBookPro5,1
– Boot ROM: MBP51.007E.B06.
– OS X Yosemite 10.10.5
= Upgraded RAM from 2GB to 8GB 1067MHz DDR3
The system recognizes the 8GB memory, however the system is still slow and utilizing only 2GB RAM. In the Activity Monitor shows 1.75GB Memory used (App Mem: 707MB, Wired: 739MB), 1.21GB Cache.
How can make the system use all of 8GB RAM?
Thanks,
Hello Art,
We are very sorry to hear that your computer is still running slow. As you are able to see the full 8GBs of RAM there may be other factors slowing down your system. I would recommend running a PRAM Reset and SMC Reset.
If your system is still running slow, please contact our Technical Support Team!
I have a MacBook5,2 with Boot ROM Version: MB52.0088.B06.
Can I upgrade to 8GB?
Hi, the MacBook5,2 can be upgraded to up to 6GB of memory.
Am I correct to say that if I was to upgrade ram to 6GB on a Macbook 5.2; it wouldn’t have any issue running programs or keeping up with everything?
Hello Brandon,
You are correct! Upgrading your MacBook 5,2 to the maximum amount of 6GBs will definitely improve the performance of your computer.
If you have any further questions, please contact our Technical Support Team and they will be more than happy to assist you!
Hi, i have a late 2008 13.3″ aluminium macbook 2.4GHz with 2 GB ram, Boot ROM version MB51.007D.B03, currently on OSX 10.6.8 and i bought the 8gb ram kit (2x4gb), tried to install but the best it can do is one of the new 4gb plus one of the old 1 gb RAM cards. How can i fix this so it can accept both 4gb RAM cards?
Hello Che,
You will need to update to the MacBook EFI Firmware Update 1.4. Once this is done, you will be able to run the 2 sticks of 4GBs together.
If you have any further questions, please contact our Technical Support Team!
HI,
Ok, sorry if I am being dense, but here we go…
I am actually not clear which patch, if any, I am supposed to download…
My MB 5.1 has MB51.007D.B03 and is running Yosemite. Which firmware update am I supposed to download, the 2.8 as indicated at the end of your article? Reading the comments some folks seem to have run into problems with this, though and the support.apple website confused me even more.
Thanks.
hhhmmm… the more I read the less I understand :(
According to my computer, I have installed 1.40f2 version of SMC, so that should need any updating, or should it?
2.8 is for macbook PRO, but mine is just a macbook late 2008.
I would be very grateful if you could clarify this point.
Thanks :)
Hello Andrea,
You will need to update to the MacBook EFI Firmware Update 1.4. Once this is done, you should be up and running!
If you have any further questions, please contact our Technical Support Team!
I use a Macbook Aluminium, 2008 13.3″ 2.0GHz and 2GHz, model mackbook 5,1
I was running Yosemite and I had 2Gb of RAM.
I decided tiu upgrade the memory to 8 gb (4×2) and then I installed The capitan and couldn`t be better.
I dont have problems with it, but I have been reading about the same kind of Macbook runing on 16gb (8×2) Any news about it?
Thank you.
Hi, 8GB is the maximum amount of memory compatible with your MacBook model. If you have any further questions, please feel free to contact our Technical Support Team.
I know this article does no address 2007 macbookpros3, 1. But, referencing this article here: https://discussions.apple.com/thread/3962859?tstart=0
if our computer is booting with a 64 bit kernal, can it now use 8gb of ram instead of the maximum 6? I checked if my 2007 core 2 duo macbook pro was using a 64 bit kernel, and it is. Can I upgrade to two 4gb sticks instead of the 6gb total I have now?
Hello Jame,
In the 2007 MacBook Pro (3,1), we only recommend up to 6GBs of RAM.
If you have any further questions, please feel free to contact Technical Support Team!
Im going to have the 8gb ram installed as I have the correct boot rom running on my macbook 5.1 (MB51.007D.B03). I am on snow leapord now.
Once I have the 8gm ram installed, will I be able to install yosemite? Will the upgrade to yosemite effect the boot rom and then render the 8gb ram unrecognisable?
Sorry, non-techie here.
That is an excellent question. Everything should work smoothly and without issue.
As long as you have 10.6.6 or later and the correct EFI you can install 8GB. You can then install Yosemite. Updating your OS may include an EFI update to a later EFI if one exists, but it will not downgrade your EFI to an older one.
Thank you so much for the prompt response :)
I have a Late 2008 MB, wanted to see what would be the best ram to upgrade it with
Hardware overview is below:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 1 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W8905Y5N1AQ
Hardware UUID: 90EA2DCF-43E0-508A-901EEF2733EF
Sudden Motion Sensor:
State: Enabled
Hi, Angel. Follow the link for memory kits compatible with your MacBook: http://eshop.macsales.com/MyOWC/Upgrades.cfm?&model=299&type=Memory&sort=pop
The more memory you have installed, the better your MacBook’s performance will be.
Tried installing the MacBook EFI Firmware Update 1.4 for my late 2008 unibody Macbook, model id Macbook 5.1 and Boot ROM version MB51.007D.B03 – But Yosemite version 10.10.4 wont let me. Do I have to install an older OS to make it work, or is there a workaround?
I have already updated to 6GB and installed a 500GB SSD, but wouldn’t mind pushing it up to 8GB, just to make it last a few more years.
Would appriciate any good advice on the matter.
I recently bought a Crucial 8GB (2x4GB) DDR3 ram 1600MHz to install on my MB13inch 2008 late but it seems to be beeping.
My Hardware overview is below:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Serial Number (system): W89151X78QT
Hardware UUID: C3B32FF4-3ACF-5157-82DE-1874A451D870
Sudden Motion Sensor:
State: Enabled
RAM (DDR3) should be running at 1066MHz and not 1600 MHz. 99% that’s your ‘beeping’ problem :)
Kind regards,
I just bought another one with the spec Ram 8GB kit DDR3 PC3-8500, 1067MHz for late 2008/2009 and Mid 2010 Macbook’s.
I think this should work fine. Thanks alot
Anytime :)
I believe this kit is gonna work fine!
Regards,
Hello,
You will want to make sure your Operating System is updated to Mac OS X v10.6.6.
You must be running Snow Leopard to address 8GB on these systems.
Please also run a PRAM Reset. If you are still having getting all 8GBs up and running, please feel free to contact OWC!
So will this work with OS X 10.7.5?
That is correct!
Hello OWC,
I tired using Centon 8GB kit DDR3-1333 So-DIMM that says its compatible with PC3-8500 DDR3-1066. It didn’t work, It gave me the beeps on boot up. What kit for sure is the way to go? PNY has a 8gb DDR3-1066 PC3-8500 kit, will this one work?
Hello Fray,
OWC would recommend purchasing the OWC 8GB upgrade kit for the Late 2008 MacBooks. We have fully tested and confirmed this to be 100% compatible. Please feel free to contact OWC with any further questions!
I have a MB13inch 2008 late. Does this work if I install the newest version OS? OS X, Yosemite etc?
Yep, even in El Capitan :)
I have MacBook Pro (15-inch, Late 2008).
Changed the HD to SSD 1 tb crucial & memory to 8gb.
This one turns on and runs all photoshops and multiple apps (MS word with > 100 mb size file, acrobat, PP…) together at speed equal of new retina laptops. Only shortcoming is the heat which now is better with Mac Fan control.
Bought this a little before thanksgiving in 2008, so actually getting into 8th year now.
Never had this firmware issues as the mac took 8gb immediately without any glitch.
My MacBook From Late 2008 does not work with this.
I’ve been following this thread for years. I have a 17 inch MacBook Pro, 2.5. I was happy to learn from here I could upgrade to 6GB max, from 4. If/ when I tried more… it would not work properly as previously discussed. Now I’m learning it can handle 8GB! My macbook is model MacBookPro4,1. (Boot ROM: MBP41.00C1.B03) Does this apply to me as well? Can I handle 8 gigs?
I’m sorry, the MacBook Pro4,1 is the early 2008 which does still top out at 6GB.
I have late 2008/early 2009 MBP running 10.6.8 and already had the required firmware installed (boot ROM MBP51.007E.B06). I’d originally planned to upgrade only to 4GB RAM because that’s the official max capacity according to Apple, but I found this site when I googled my model and “max memory.” Glad I did! My new OWC RAM arrived yesterday, and my 76-month-old MBP is now running smoothly on 8GB! I haven’t yet pushed it to use that much memory, but I have hope that when I do, it’ll be smooth.
Next step: upgrade from Snow Leopard finally???
(Though Activity Monitor only shows 7.75GB RAM.)
The Number is still correct – 7.75GB RAM is what the Operating System is granted, the remaining 256MB are allocated as Video Memory for the GPU to work with.
I have the late 2008 macbook and am now convinced that I need the RAM boost. However, what do you all suggest that i get installed? So far I found out that these two modules are compatible. I need someones expert opinion on which one to buy and install.
1– Kingston ValueR DDR3 SO-DIMM 1066MHz 4GB CL7, 1.5V, 512Mx64, 204pin
or
2– 8.0GB OWC Memory Upgrade 2 x 4.0GB PC8500 DDR3 1066MHz 204 Pin
Hello Ahmed,
We would suggest OWC RAM for a couple different reasons. The main reasons would be all OWC RAM meets and/or exceeds Apple/Intel specifications,fully compliant with JEDEC specifications and is RoHS certified. OWC also has a lifetime advanced replacement warranty. This means if the RAM ever has any issues you can always have the option to have a new set sent to you first.
I have installed both 4GB ram chips.. however, my hardware overview on the computer is only showing 4GB total? I have the firmware upgraded to the max, what am I doing wrong?
Try re-seating both 4GB modules making sure that the contacts are completely inserted into the sockets. If you’re still having an issue – try each 4GB module by itself to see if one of the modules needs to be replaced or if perhaps there’s an issue with one of the sockets itself. Please contact our Technical Support Team at 1(815)338-8685 via live chat or email and they will be more than happy to assist in further troubleshooting if both 4GB modules work or to exchange the failed module.
Hello, what a kick to discover I have a 4GB RAM MBP51.007E.B06, that could upgrade to 8GB! The beachball has been spinning ever since Yosemite. Now I only hope upgrading will bring enough juice to the MBP. Regards Joakim
Yes, it’s a whole new computer with 8gb. To beef it up even more, get an SSD drive and drive tray to replace the optical drive, and make your own Fusion Drive!
I finaly paid for a macbook that is not the first out of the box and be able to upgrade to 8gb yahoooo!!!!! it’s great all other times it was the first out of the box always problems thanks guys and gals yahooo again
Hello I have just upgraded my macbook silver late 2008 from 2gb to 8 gb crucial ddr3l 1066 mhrz what an improvement!!!! thank you again for your clear advise
Hello,
I am looking for some feedback on issues I am experiencing with my late 2008 aluminum unibody Macbook. Here are the specs:
Model ID: Mackbook 5,1
OS: 10.10.1 (Yosemite)
Processor: 2.4 GHz Intel Core 2 Duo
Memory (stock): 2 GB 1067 MHz DDR3
*Memory (current): 8 GB 1033 MHz DDR3
Graphics: NVIDIA GeForce 9400M 256 MB
Boot ROM Version: MB51.007D.B03
I am experiencing sporadic Kernel panics after upgrading the RAM to 8 GB (2×4 GB). My boot ROM version is correct, thus I do not think I need the firmware update. Machine runs iTunes and iPhoto much faster than it did with stock 2 GB RAM, but now goes into Kernel panic either out-of-the-blue, when I try to come out of screensaver mode, or when I am using Chrome while iTunes is downloading/updating.
Any advice on this issue or ideas on what’s going wrong are highly appreciated!
Hi, I just checked my MacBook and it has 2x4gb 1067mhz DDR3 fitted… I hope the issue is not caused because yours is only 1033mhz… :(
Bus speed on my machine is 1.07 GHz. The RAM I purchased claims to be 1066 MHz compatible. This is actually the second set of 4 GB sticks I’ve tried. Exchanged the first set after determining them to be faulty. These ones have worked a lot better so far, it just seems like the machine gets overworked and Kernel panics.
Hoping the issue isn’t just from buying cheaper RAM :(
I suggest you return the ram, and buy elsewhere. This is not supposed to happen!
Hello,
I had the same issues when upgraded to MC Aluminium late 2008.
I purchased 2x4Gb from Kingston. I had to send the memory 3 times until i got a kit that had no problems. The first 2 were failed. I have been using it for 16 months…smoothly.
This is my mac: SN W8845AZP1AX
Memory: Kingston ValueR DDR3 SO-DIMM 1066MHz 4GB CL7, 1.5V, 512Mx64, 204pin (PC8500)
I hope it helps
Bus speed in system report shows 1.07ghz btw… don’t know if this matters though…
Sorry for the multi-episode answer, but I’m 99% sure your ram is too slow… Found this on everymac.com : RAM Type: PC3-8500 DDR3 Min. RAM Speed: 1066 MHz
Details: Supports 1066 MHz PC3-8500 DDR3 SDRAM.
link: http://www.everymac.com/systems/apple/macbook/specs/macbook-core-2-duo-2.4-aluminum-13-late-2008-unibody-specs.html
Oh shoot, just realized I made a typo. The 8 GB of new RAM I purchased is 1333 MHz (1066 MHz compatible)!
I’m sorry to hear about the issues. It sounds like you may have bought 1333MHz RAM instead of the proper 1066MHz RAM. If that is the case you’ll want to exchange them for the proper 1066MHz RAM.
If you do have 1066MHz modules, I recommend trying to clean the memory module. Take a clean pencil eraser and gently rub it along the metal contacts on the memory and follow that by using a microfiber towel along with rubbing alcohol to clean the metal contacts on the memory, this should insure that the memory is getting a solid contact with the computer
If that doesn’t resolve the issue, I would try both and SMC and PRAM reset.
SMC reset: http://support.apple.com/kb/HT1411
And
PRAM Reset:
1) Start the machine while holding down the Option-Apple-P-R keys
2) Wait until you hear the 3rd startup chime, then let go of the keys and let the machine boot up.
Lastly if the issue is still unresolved, I recommend running an application called Rember. Rember is a free download at http://kelleycomputing.net:16080/rember/. Once you have it downloaded please run a 3 pass test. This application will let us know if any issues are present on the memory modules.
I just got all exited about upgrading to 8gb on my late 2008 MacBook5,1 13″ (MB51.007D.B03) so downloaded EFI Firmware Update 2.8 but I just get :Alert – ‘This software is not supported on your system.’ I’m on Yosemite 10.10.4 -any way around this???
Hello,
Please make sure that the MacBook Pro EFI Firmware Update 1.8 is being used. If you are still experiencing problems I would recorded reaching out to our contact our Technical Support Team! We will be happy to further help!
Hi, I’m pretty green on all this stuff. I have the Macbook Pro 5,1 and meet all compatibility (already had Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8)
** I’m still running Snow Leopard and having trouble with Flash these days and can’t seem to update it and I get Safari notifications stating my version is no longer supported. Found this discussion when trying to sort out upgrading to Mavericks? or Yosemite? Then I wonder how to do this 8GB memory upgrade…and HOW. THANK YOU for any advice!
PS – when I ask how, I mean really basic how because as you can tell, I’ve never done any manual upgrading – only the system-automated. Thanks again!
Hello Elana,
We have step by step instructions on how to install Yosemite here.
We have an installation video for the RAM upgrade here.
I would recommend getting the 8GB upgrade kit before upgrading to Yosemite.
Hi, could you please let me know if my macbook pro would be compatible for an 8G ram upgrade?
Model Name: MacBook Pro
Model Identifier: MacBookPro5,5
Processor Name: Intel Core 2 Duo
Processor Speed: 2.26 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP55.00AC.B03
SMC Version (system): 1.47f2
Hi, it appears that your model of MacBook Pro is compatible with 8GB of memory. To find other upgrades compatible with your MacBook, be sure to check out our “My OWC” page.
After determining that mine is a Macbook5,1; Itried installing recommended firware
– a message popped up saying ” this computer does not need this update” (my macbook which currently running Yosemite 10.10.1.)
– 2 yrs back I changed from original setting of 2gb to 3g ddr3 ram. and its dead slow.
– Also i noticed mac heated up really quick when i upgraded to 4gb ddr3 ram.
kindly advise if my machine is ok to go for 8gb update.
Yes, my Late-2008 Unibody MacBook has 8gb of ram, just install it and find a patch that suits your firmware. Another nice unofficial tweak is to get an Optibay kit, throw out the Superdrive, install the original HDD there, and install an SSD in the hard drive slot. Then configure this as a Fusion Drive. Machine feels like a new one :)
Thanks Michael,
Hows the performance with 8gb ram ?? is it faster? does the battery heats up??
strangely with 4gb ram upgrade on my mac … online video streaming kept pausing like an old VCR playback :(
so now you have HDD+SSD?? how many gb’s are they put together?
The Fusion Drive is 256gb SSD + 640gb HDD. Could have gone with 128gb SSD but I wanted to make sure if the FD experiment didn’t go well, I still had a decently-sized SSD to use standalone. Performance is around 220mb/s write and 270mb/s read. Strangely enough this is almost the same as my late-2012 Mac Mini, so that old MacBook is still pretty fast! As for the ram, having no swapfile, even when working with AutoDesk Fusion 360 is awesome, and keeps this MacBook still usable for some 3d-designing. Even sold my iPad because I love this laptop so much that I rarely used the pad :)
Much thanks Michael … will go with your suggestion!
Hi I want to know if my model is compatible with this solution
Nombre del modelo: MacBook
Identificador del modelo: MacBook5,1
Nombre del procesador: Intel Core 2 Duo
Velocidad del procesador: 2.4 GHz
Cantidad de procesadores: 1
Cantidad total de núcleos: 2
Caché de nivel 2: 3 MB
Memoria: 4 GB
Velocidad del bus: 1.07 GHz
Versión de la ROM de arranque: MB51.007D.B03
Versión SMC (sistema): 1.40f2
Número de serie (sistema): W89141098QT
UUID de hardware: CB18F2D2-96A0-537C-946D-92998AE0E159
Thanks
Hi, it looks like your MacBook matches the criteria in the post above. As long as you are running OS X 10.6.6 or later, your machine is compatible with 8GB of memory.
It looks like my 2008 Macbook 5,1 is compatible so I just bought the memory from the site you recommended :) I will let you know how it goes. And here I was considering getting a whole new computer! I’m pretty excited. Hopefully I can get another 6 years out of this baby :D
Hi!
Anyone knows if I can upgrade my late 08 MBP 2.8 from 4 to 8Gb DDR3 1066 MHz if I am already running Yosemite? My Boot ROM Version is – MBP51.007E.B06
Thank for all the info
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2,8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1,07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Serial Number (system): W89031EF1GN
Hardware UUID: D647F1D2-0B6F-5C2D-80E4-75021AA
Hi. Yes, your MacBook Pro matches the criteria in the article and is compatible with 8GB of memory.
MacBookPro5,1 late 2008
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 6 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
will recognize then lock up when 8gb ram installed. It will accept 1 4gb module and one 2gb module without a problem.
I replaced ram several times still the same thing happens. I ran rember to check ram.
I am running snow leopard.
Is there another bios update that would correct this problem?
Hello Richard, sorry to hear about the issues. You’ll want to confirm your SMC revision is 1.33f8 (http://support.apple.com/kb/DL741).
I would than recommend trying to clean the memory module. Take a clean pencil eraser and gently rub it along the metal contacts on the memory and follow that by using a microfiber towel along with rubbing alcohol to clean the metal contacts on the memory, this should insure that the memory is getting a solid contact with the computer
If that doesn’t resolve the issue, I would try both and SMC and PRAM reset.
SMC reset: http://support.apple.com/kb/HT1411
And
PRAM Reset:
1) Start the machine while holding down the Option-Apple-P-R keys
2) Wait until you hear the 3rd startup chime, then let go of the keys and let the machine boot up.
If you continue to have issues please contact us so we can get your OWC RAM replaced for you.
Can my Macbook handle 8GB memory?
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W88510ML1B0
Hardware UUID: 87304618-C5B8-53CA-8343-A762E02FBA3D
Sudden Motion Sensor:
State: Enabled
Hi, your MacBook appears to match the flow chart criteria at the bottom of the article. As long as you are running OS X 10.6.6 or later, you’re MacBook will be compatible with 8GB of memory.
Hi- I’ve got a Macbook Pro (see below) running Yosemite. Will it handle the 8 gig upgrade?
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Serial Number (system): W88433EV1GA
Hardware UUID: 357EC52A-E2B9-595B-BB39-03CCBF04C9FB
Sudden Motion Sensor:
State: Enabled
Your MacBook Pro is indeed certified for 8GB of memory.
Hello, must I buy Apple certified RAM in order to work?
Hi, OWC memory is fully tested and Apple qualified, so it will work perfectly with your MacBook.
I have a macbook 5,1 with Boot ROM Version: MB51.007D.B03. It came with 4GB in DIMM1. I bought the 2x4GB memory kit from OWC. Got it today. Tried both together and got the 3 beeps when turning it on. Separately they work just fine!
That’s a little bit of a bummer. I had done quite a bit of reading on the web and thought that going with OWC was the sure-way of getting the memory to work on the first go! Any suggestions would be welcome. Again the memory is brand new and works separately; it is clean; all shiny compared to the existing one.
Thanks in advance for your help!
I have OSX 10.9.5. I ran the various tests recommended below: EFI update -> my Mac tells me it’s not needed. SMC and PRAM don’t make a difference. In the worst case scenario, if I can add 2 more gig, that’ll still be better than 4!
Still interested in any suggestions to get 8 working…
I’m sorry to hear that the upgrade isn’t going as expected. The three beeps indicates bad RAM, however they are working individually so the modules themselves aren’t bad. I would recommend testing to see if the modules work in reverse positions if you haven’t already, and to test them separate from each other and paired with the Apple memory as well. From there it would be best to contact our tech support team for further support and resolve this. We can be reached via phone at 800-869-9152, or 815-338-8685 internationally; by chat; or by e-mail.
Thanks Alex for getting back with me. I’ve tried all of that with the same result. Interestingly enough, the “original” memory is a Corsair 4GB at 1333MHz. My Macbook is a refurbished from BestBuy.
I will call the number you gave me above.
Hi everyone, I have the exact same problem as Geoffroy, did you finally find a way to get 8 working ?
Same problem here.
I have a Late 2008 Macbook Pro 2.4 GHz Intel Core 2 Duo, 2 GB 1067 Mhz DDR3 memory, version: 10.7.5, Boot ROM version: MBP51.007E.B06
I tried to put in two 4GB DDR3 but it only “beeped” and would not start…
Could it be that new memory is not compatible?
Please help!
Thanks!
I’m sorry to hear about the issues. If the computer was giving a series of single beeps it means it thinks no memory is installed, indicating an installation issue. If the computer was giving a series of 3 beeps that indicates bad RAM – http://support.apple.com/kb/ht1547.
I recommend trying to clean the memory module. Take a clean pencil eraser and gently rub it along the metal contacts on the memory and follow that by using a microfiber towel along with rubbing alcohol to clean the metal contacts on the memory, this should insure that the memory is getting a solid contact with the computer
I have a Late 2008 MacBook 5,1. My Boot ROM version is MB51.007D.B03. I did the firmware update when it first came out back in 2009. I have two 1067 MHz 4 GB DIMMs installed, but the computer only recognizes them as 2 GB DIMMs. My wife has the identical computer with the same firmware and RAM, but hers utilizes both sticks for a full 8 GB. Any suggestions?
This is an odd issue if the RAM shows as 8GB on your wife’s computer. I would try both a SMC and a PRAM reset.
SMC reset: http://support.apple.com/kb/HT1411
And
PRAM Reset:
1) Start the machine while holding down the Option-Command-P-R keys
2) Wait until you hear the 3rd startup chime, then let go of the keys and let the machine boot up.
If the issue persists try cleaning the RAM slots on the computer with some compressed air.
Hi, just want to know
My macbook have spec
13-inch, aluminium, late 2008
Proc 2,4ghz core 2 duo
Memory 8gb 1333 mhz ddr3 –> ???
Why my mac still working quite well?
Or should i change to 1067 mhz ddr3 for the best result?
Thanks
We only recommend using 1066Mhz DDR3 memory with the late 2008 MacBooks. 1333Mhz RAM technically should down clock to 1066Mhz without any issues, however that is not always the case.
Just wanted to be sure I could upgrade to 8GB…
13-inch, Aluminum, Late 2008
Processor 2 GHz Intel Core 2 Duo
Memory 2 GB 1067 MHz DDR3
Software OS X 10.9.4 (13E28)
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Thanks
Hi Joe, your MacBook matches the criteria in the flowchart at the bottom of this post and is compatible with this 8GB memory upgrade kit.
Hi, can this article be updated to include MacBook 5,2 ?
my 2.16GHz has boot rom version MB52.0088.B06 and is currently using 4GB DDR2 @ 800MHz… i’d like to upgrade it to 8GB if possible.
I’m sorry, but the MacBook5,2 is a 2009 machine compatible with up to 6GB of RAM and will not take 8GB.
Hi, I have a MacbookPro 5,5 (Mid-2009, 2,53GHz Intel Core 2 Duo) with Boot ROM Version: MBP55.00AC.B03, will it access/use 8GB of RAM ?? Im ruuning OS X 10.8.5 (12F45). Thanks in advance
Hi, your MacBook Pro model is indeed compatible with 8GB of memory. Please feel free to contact our customer support team if you have further questions. Thanks!
Hi, I’m planning to upgrade my Macbook’s RAM to 8gb. I have a late 2008 model with the following specs which I believe is sufficient for the 8gb upgrade:
Model Identifier: MacBook5,1
Boot ROM Version: MB51.007D.B03
However, I’m kind of having a hard time finding a 4gb 1066mhz SODIMM module, would it be possible to use a 1333mhz instead?
We only recommend and support 1066mhz modules in your model machine. We do sell our OWC brand 8.0GB(4.0GB+4.0GB Kit) PC8500 DDR3 1066MHz SO-DIMM Memory Upgrade Kit
I purchased 4GB×2 (PC8500 DDR3 1066MHz) for my MacBook 13-inch Late 2008 (MacBook5.1) with the Boot ROM version of MB51.007D.B03. It’s running Mac OS X 10.6.8.
I’ve been trying to follow this article evrything matches up as close as I can.
But I encountered a difficulty.
1. When I put the two 4GB ram into the slots and start it up the MacBook makes 3 beeps and does not start.
2. I tried one 4GB ram into the upper (lower) slot — the result is same as 1.
Tried for the other 4GB ram — the result is same as 1.
3. I tried with one 4GB ram and one of my original 2GB ram and it started fine showing 6GB of ram with any combination of new and old.
4. I tested 3. with both new 4GB ram but it begins to beep again.
4 4 – 4 2 2 2 – [GB] — upr slot
4 – 4 2 4 2 – 2 [GB] — lwrr slot
– – – 6 6 4 2 2 [GB] — total of ram
Any ideas?
Thank you.
I am sorry to hear about the issues. 3 beeps is the computer POST (Power on Self-Test) saying it thinks the RAM is faulty.
I recommend trying to clean the memory module. Take a clean pencil eraser and gently rub it along the metal contacts on the memory and follow that by using a microfiber towel along with rubbing alcohol to clean the metal contacts on the memory, this should insure that the memory is getting a solid contact with the computer
If that doesn’t resolve the issue the RAM is likely faulty and needs replaced under warranty.
Hello, I am unsure if i should upgrade my Macbook pro 15 inch late 2008 model.
MacBook Pro 5,1
2.4 GHz
2GB 1067 MHz DDR3
Boot ROM Version: MBP51.007E.B06
OS x 10.8.5
I double checked the Boot ROM Version by trying to do the EFI update and it states my laptop does not need the update.
Hi Aurelio. As we’ve outlined in this post, upgrading your MacBook’s memory is one of the easiest and most cost effective ways to speed up your MacBook. And it looks like you’re machine is certified for 8GB of memory.
Hi there!
I have a 2009 MacBook With model identifier 5,1. However according to an article, which seems to reference you, I need a Firewire port and a SD slot and NOT a thunderbolt. Now funnily enough, I have none of them. Can I still upgrade from 4GB to 8?
Hi, as long as your MacBook5,1 meets the criteria in the above post, you will be able to install 8GB of memory. The flow chart at the bottom of the post should clear up any confusion. Thanks!
Hey there….I have a late 08 aluminum 4GB (i think its 2×2GB)macbook 2.4 model A1278 (and I think its DDR2).Im not computer savvy at all but both memory slots are taken. Im alittle unsure if it has 4 or 8 Gb of ram currently because the order paper work I have just says 4GB MACBOOK and im not sure if it meant with one or two modules.
Ok …so… It started beeping 3 at a time… so I went apple and they confirmed that my ram went bad.
Id like to upgrade to the 8GB if possible…but I dont know what the boot rom is because I cant get it to start up. Thus…I cant download the EFI UPDATE….SO …i was wondering if I needed to get the proper 2×2GB first in order to do the upgrade if possible. And when I do upgrade the ram….what exact module should I be lookin for…..my current modules have a label with “2GB 2R×8 PC3-8500S-7-10-F1″….and I have no idea what that means really……im thinking I should be looking to get 2×4GB PC3 8500 (OR HIGHER?) DDR2 …..is that right? Can I get a DDR3?
Sorry about all the uncertainties…..as you can see im more than slightly confused…..lol! Im new to this ram stuff….
It is best for you to contact our Sales team with your computer’s serial number to be 100% certain of which model computer you have.
It does sound like you have a MacBook5,1 which is compatible with 8GB of RAM if the latest firmware is installed (as detailed in this blog). If you stayed on top of installing your system updates then the update would have been installed automatically.
A MacBook5,1 uses DDR3 1066Mhz memory and all compatible upgrades can be found here
After reading this article I purchased and 8GB upgrade kit for my Macbook 13″ late 2008 unibody, or MacBook5,1 as its put above.
I’ve been trying to follow the article as close as I can, everything matches up. It is a 2.4ghz model and had 4GB of memory installed when I bought it. It’s running OSX 10.9.4.
When I put the two new 4GB ram into the slots and start it up the macbook makes 3 beeps and does not start.
I tried with one 4GB ram and one of my original 2GB ram and it started fine showing 6GB of ram. I tested this with both new sticks but when I put both of them in it begins to beep again.
Am I doing something wrong? I’m kind of new at RAM upgrades. Thanks for the help!
I’m sorry to hear this isn’t working smoothly. The first thing to do would be to try the EFI update to to make sure you have the new version, not the older version with the same name.
Second is to test each of the 4GB modules with a 2GB. If one doesn’t work, try cleaning the contacts by using a clean, soft pencil eraser to rub gently along the contacts on both sides of the modules. You can also use a Q-tip and rubbing alcohol instead, but you need to let it dry afterward.
Third is to install the 8GB kit and reset the SMC and PRAM together in that order.
If all else fails, please contact our tech support team via phone at 800-869-9152, or 815-338-8685 internationally; by chat; or by e-mail.
I have a macbook 2008 late. My macbook is Macbook 5.1. And a Boot ROM version is MB51.007D.B03.
Can I upgrade memory to 8 GB with 2 x 4GB DDR3-1333 PC3 10600, not 4GB DDR3-1066 PC3-8500? Thank you.
We recommend using memory of the speed the Mac is designed to take. As long as you are using the correct generation of memory (DDR3, DDR2, DDR) for your machine. You can technically use different speed memory, but it adds unnecessary variables and potential compatibility problems while not really giving you any benefit. The one notable exception is the 2011 MacBook Pros.
Hi all,
Just want to thank the following (OWC Grant) for the creation of this article, it has helped greatly with the 13″ MacBook (late 2008 model) that I inherited.
I have a few questions on the following if you can please address for me.
1. MacBook is currently on OSX Version 10.8.5 (Mountain Lion). Put a copy of the OSX on an 8gb thumbdrive for copy.
I have purchased the following for the laptop off Newegg:
a. PNY XLRB PRO 240GB Internal Solid State Drive (SSD) http://www.newegg.com/Product/Product.aspx?Item=N82E16820178453
b. G.SKILL 8GB (2 x 4GB) DDR4 Laptop Memory
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231294
After reading the article, it looks like I will be fine with the 8GB. Just want some input from you guys on the hardware I purchased is adequate for this MacBook. Basically going to be used for Outlook and Gmail email, Microsoft Project and Office, etc.
2. Should I upgrade to Mavericks on the following? I’ve done some research on this with the 2008 model and have seen mixed results.
Thank you for the help, it is greatly appreciated!
We are glad to hear this article helped you! We cannot really comment on non-OWC products in terms of quality, but as for the performance for Outlook, email, Office, etc. 8GB of memory will do very well. The one thing you want to be wary of is the SSD. Late 2008 MacBooks, and many of the late 2008-2010 Mac machines, have trouble with 6G drives of any kind, both SSD and hard disk based. In these machines, those will only perform at SATA Revision 1.0 (1.5Gb/s, 150MB/s) speeds rather that the SATA Revision 2.0 (3.0Gb/s 300MB/s) speed the computer can deliver. The compatibility information on our 6G SSDs has further details. Because of this we recommend use of 3G SSDs in these systems.
As for Mavericks, that is really up to personal preference and the applications you are using. Some newer software requires the latest OS, but otherwise it really depends on if the new features sound appealing and useful to what you are doing.
I have a macbook 2008 late. My Macbook is MacBook5,1. And a Boot ROM version is MB51.007D.B03.
Can I upgrade to 8gb ram with DDR3-1333 PC3 10600? Thank you so much.
Guys, thanks & great job on this article. It’s still relevant three years later. Sorry if this has been beat to death already, but your update comment at the end of the article:
“UPDATE: FEBRUARY 2012
EFI Firmware Update 2.8 was released on February 28, 2012 for the MacBook Pro, to resolve graphics issues. It does not disable the 8GB compatibility the previous firmware revision granted.”
… sort of makes it sound like (i.e. “does not disable”) it is dependent on the upgrade having already been in place. Can you confirm that the code to support 8GB is included in MBP51.007E.B06?
Background info, I installed this upgrade a while back and I just noticed that I’m failing memory tests in the last couple of GB. Probably a bad chip and a coincidence, but I thought I’d verify.
MBP51.007E.B06 is current and allows 8GB of memory to operate on your MacBook Pro.
Does anybody know if this firmware update also allows the “Early 2009” Macbook (MacBook5,2 MB52.0088.B05) to support 8gb without any slowdown?
Hi
I have my boot rom at MB51.007D.B03 and even tried to reinstall the firmware but it won’t let me. I can use 6gigs no problem and have checked with 8 but I get crashes and eventually the machine stops booting. I’m just borrowing someone’s ram to test the suggestions above. Any idea what I can do to manually install the update like you suggested you did above so I can get some ram myself and upgrade?
Thanks
Cian
I’m sorry to hear about the trouble with that. You can find the EFI update here. It should work and help with this. If it still doesn’t work try also updating the SMC, which can be found here.
If the EFI update from that download tells you it isn’t needed, it would be best to contact Apple for further instructions on making sure your computer has the “newer” EFI update of that version.
If everything is properly up to date and it still doesn’t work, check the RAM you are using and make sure it is compatible. You may also want to clean the contacts just to be safe. To do that please use a clean, soft pencil eraser and rub gently along the contacts on both sides of the modules. You can also use a Q-tip and rubbing alcohol in place of the eraser, but you need to let it dry afterward.
If that still gives you trouble, please contact our tech support team via phone at 800-869-9152, or 815-338-8685 internationally; by chat; or by e-mail.
Thanks bud I’ll give it a try
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
Looks like I can upgrade to the 8gb of RAM. DDR3, 1066Mhz right? Any issues with using a SSD with the increased RAM?
Hi Dave, as long as your MacBook Pro is running OS X 10.6.6 or later, then you can install 8GB of memory. And your new memory will work perfectly with an SSD.
Before I buy the 8gb for my macbook to make more room for photography work, will this one accept more memory?
Model Name: MacBook
Model Identifier: MacBook4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MB41.00C1.B00
SMC Version (system): 1.31f1
Serial Number (system): W8824NDB0P1
Hardware UUID: E649336D-17A1-5D0D-AD9F-C70D501270EA
Sudden Motion Sensor:
State: Enabled
Your MacBook4,1 model is OWC Certified for up to 6GB of memory, which can still make a big difference.
Could a 16GB of ram upgrade be performed by any chance?
For these machines, 8GB is the max.
Aha!
Ok Thanks. One more question, my Macbook Aluminium 2008 has a broken keyboard and id like to replace it. Could I just get a Macbook Pro late 08 keyboard to replace mine with? Or does it HAVE to be specifically for my Macbook?
Thanks :)
The MacBook Pro Late 2008 models came in 15-inch and 17-inch varieties only. The first 13-inch MacBook Pro was the Mid 2009 model, and that keyboard could be used in the Aluminum 2008 MacBook model.
However, depending on which Model MacBook you have the keyboard markings were slightly different. The 2.4GHz model had an illuminated keyboard (just like the Pro 2009 model) but the 2.0GHz did not (and thus the 2.0GHz model wouldn’t have the accompanying brighten and dim backlight function keys. You could install it into the 2.0 model, but the backlight functionality wouldn’t work.
I just tried running the 1.8 firmware update and received a message that I do not need it. I just ordered the 8GB RAM to upgrade and was going to update the firmware before it got here. Do I have to wait to update firmware?
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
You do not need to wait to run the update. The update was most likely run automatically in the background, so your computer will be ready to go with the 8GB of memory when it arrives. The boot ROM version you have is different than what is in the blog, but it is possible it is a newer version than what is necessary. If you do have any trouble with the memory when you receive it, please contact us at 800-275-4576, by email, or by chat.
Thanks for such a great/informative article. After updating my MacBook5,1 (4GB RAM) to Mavericks, I have been experiencing sluggish performances quite now and then. So, I was wondering if I can upgrade the RAM to 8GB, which I will certainly do now after reading this article.
hi! i would like to know if the 2008 late mac will take full advantage of the 8gb of ram.. isn’t the main board limited to 4gb or something? im a noob ok, my question is, will it be good deal for the money or i will be ok with 6gb ram;
THANKS
If your Late 2008 MacBook meets the criteria in this blog post, then it will be able to take full advantage of 8GB of memory. And 8GB of memory will give your Mac better performance than 6GB.
thanks for your time!
ok so i think it is, but please tell me if im wrong, this is my rom MBP51.007E.B06
im runing OS X 10.9.2 (13C64)
sorry if im not giving all the info to know if i can run 8gb
Its a late 2008 MBP
thanks for helping me out!!!
Your MacBook Pro will run 8GB of memory without an issue.
Model Identifier: MacBook5,1
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Software OS X 10.9 (13A603)
I tried installing 8GB of Corsair CMSO8GX3M2A1333C9. It didn’t work. I ordered a replacement thinking it was faulty memory. Still didn’t work. Two different sets of errors though. The first couple resulted in long beeps. The second pair just kept spinning the optical drive without any beeps.
I tried also resetting the SMC and PRAM. No luck.
Any advice?
We sell and support OWC Brand memory for this upgrade. The correct memory to upgrade that machine to 8GB of memory is:
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Hi,
My specs have Boot ROM Version: MBP51.007E.B06 (not B.03) and I am running Maverick, is this going to make a difference in relation to the certification for 8GB RAM?
Thanks
Your computer has the latest firmware from Apple which came out on Feb 28, 2012. Your computer will be still able to handle 8GB of memory without issue.
Hi i was wondering if I can run 8GB on my late 2008 MBP. Using Mavericks now. Thank you for help and advice.
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Sudden Motion Sensor:
State: Enabled
Your MacBook model is indeed certified for 8GB of memory
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Operative System Version: 10.9.1
The upgrade to 8bg RAM doesn’t work.
Any ideas?
Thank you.
You have the proper firmware to run 8GB (2x4GB) of memory. I recommend trying to clean the memory module. Take a clean pencil eraser and gently rub it along the metal contacts on the memory and follow that by using a microfiber towel along with rubbing alcohol to clean the metal contacts on the memory, this should insure that the memory is getting a solid contact with the computer
If that doesn’t resolve the issue, I would try both and SMC and PRAM reset.
SMC reset: http://support.apple.com/kb/HT1411
And
PRAM Reset:
1) Start the machine while holding down the Option-Apple-P-R keys
2) Wait until you hear the 3rd startup chime, then let go of the keys and let the machine boot up.
If you continue to experience issues please contact our tech support
Thank you very much but I still have a doubt.
Do you mean trying an SMC and PRAM reset before installing the new memory or once it’s installed.
Thank you.
Will it bugger my MacBook (late 2008) if I use the faster RAM, 1333 vs 1066, and is there any real value to the faster RAM if the bus speed bottlenecks things at 1066? I am running OS-X 10.9.1.
Cheers,
Elvis Vincent
IMOM
We only offer and support 1066Mhz memory for the Late ’08 MacBooks. There is no benefit to running 1333Mhz memory even though it is theoretically possible to use it.
Sorry if already Asked & Answered, but is faster RAM supported, such as PC3-12800 SODIMMs? I’ve generally not had an issue using faster RAM in desktops since the Bus will make them operate at slower speed ratings anyway. And if in this case those matched sticks won’t work, what is the fastest RAM that will function properly?
We only offer and support 1066Mhz memory for the Late ’08 MacBooks. All speeds of DDR3 are suppose to be backwards compatible with each other, so theoretically 1333Mhz memory would down clock to the proper 1066Mhz speed. Doing this would be of no benefit to the performance of the computer and only leaves the door open for issues to be created.
I tried replacing RAM in this machine using some 1333MHz DDR3 (Corsair) and it failed… but that RAM also failed in a MacBookPro6,2 as well as MacBookPRo5,1. Your mileage may vary. It definitely worked with Samsung 1066MHz PC8500S DDR3
MacBook5,1 (Aluminum Unibody Late 2008) is especially very specific about what kind of RAM module is placed in the first RAM slot – it must always be exactly the same as is in the specs by Apple. In the other slot can be almost anything including 1333MHz RAM modules.
Awesome post!
Running Mavericks on a late 2008 Macbook 5,1 2Ghz
Boot ROM is MB51.007D.B00.
Does it need to be upgraded in order to use 8GB RAM? In the article you say it should be MBP51.007E.B05, but the current version on the applie site is listed as MB51.007D.003.
Help!
It is the difference between MacBook & MacBook Pro that is causing the confusion here:
MBP51.007E.B05 is the correct version for For MacBook Pro models (MacBookPro5,1).
MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03 as listed on Apple’s site.
Hey Nick,
How is Maverick running on your ancient Macbook? I have the same awesome model and looking to see if I should upgrade to maverick or stay with snow leopard. Also did you ever add that 8gb of ram and if so how is that working for ya? Also looking to upgrade in this department too. Thanks for your help much appreciated.
hi
can this mac run with 8gb ram
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Serial Number (system): W8911GYV7WU
Hardware UUID: 90A24162-9082-549C-A35E-7135586796F4
Sudden Motion Sensor:
State: Enabled
Yes, if your OS X version is 10.6.6 or later, then your model of MacBook can run 8GB of memory.
am running 10.9
Thanks for making this clear. I’m a tech power user, but we get into ROM versions and you start to lose me. The flow chart at the end was exactly what I needed. I saw that I have MacBook4,1 and that settled it: 4GB is the max for me. Good work guys! I guess I’ll be getting a whole new system. Shucks! My disappointment is indescribable!
Well – actually- your 4,1 model can go up to 6GB:
http://eshop.macsales.com/shop/memory/MacBook/DDR2/
Not sure if that helps or not – not 8GB, but 2GB can make a big difference depending. :)
Hi,
these are my features of my macbook running 10.9.
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
can upgrade to 8GB?
Your model of MacBook is fully certified for 8GB of memory
Hello and thank you for your answer,
by your message i undestand that i don’t need any extra firmware update to make the 8GB right?
Thanks!
That is correct. No firmware update is needed for your model.
Jarrod,
I have exactly the same late 2008 Macbook as “Markov” and it has the updated firmware (Boot ROM Version: MB51.007D.B03). He asked if he could upgrade to 8GB Ram and you said YES on 12/17/13 — no need to upgrade the firmware. That is very encouraging.
I currently have 6GB ram in my laptop and would like to boost it to 8GB. My question is, can I replace the current 2GB chip with a 4GB chip that was used in my mid-2012 Macbook Pro. I bought this 4GB chip from OWC quite some time ago and have recently upgraded to 16GB. So, I have two 4GB chips available. Both are DDR3 SDRAM chips.
Mac, the 2008 Macbook uses PC8500 1066MHz memory while the mid-2012 MacBook Pro uses PC3-12800 1600MHz memory. The two are not interchangeable.
Thanks! You are totally correct on that one. I tried just now and got the 3 beeps.
Hi there,
my wife’s Unibody Macbook 5,1 is running following setup:
Boot-ROM-Version: MB51.007D.B03
SMC-Version (System): 1.32f8
Software OS X 10.9.1 (13B42)
It really just has 2 Gigs of RAM, I just tested the 4 Gigs out of my Windows Laptop.
So system wise I should be good to go. Is there anyway of determening if I habe the “too early” or the late EFI version?
I will order RAM soon, just would like to know if I will habe to fiddle with the system more than that.
Thanx to all.
Chewie
Your Macbook 5,1 EFI is up to date, which you can see on Apple’s EFI and SMC firmware updates for Intel-based Macs webpage:
http://support.apple.com/kb/HT1237
Hi,
I decided to upgrade the 2x 2GB memory. 10.9 Maverick seems to be really slowing down my MacBook… I purchased 8GB DDR3-1600 and got to work. Installing the sticks was easy, but after piecing everything back together and booting up, I got 3 beeps pretty much instantly. Switched the 2 4GB sticks around, no success. Running 1 stick at a time would not work either.
I’ve tried several combinations and I found that the 4GB would not work in BANK 0/DIMM1, only in BANK 0/DIMM0. So I have now set up the original 2GB in BANK 0/DIMM1, and the 4GB in BANK 0/DIMM0. Resulting in 6GB.
Any thoughts on what might be the problem? If I switch back to 2x 2GB there are no issues with either of the banks.
Macbook5,1 (2008 Late)
Intel Core 2 Duo
2 GHz
6GB RAM (1x 2GB original Hynix & 1x 4GB DDR3-1600)
Boot ROM MB51.007D.B03
Running OSX 10.9
I’m going to guess that the memory isn’t from OWC – Looking at the speed of the memory you purchased, that’s probably part of the problem and there are other differences we make as well in terms of ensuring the right compatibility for our MAXRam certified upgrades.
This page has the correct memory for your 5,1 model:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
The maximum is 8GB for that system – so 16GB isn’t an option – nor is 10GB or 12GB with mixed… 8GB MAX
right now you have a proper spec 2GB module and the system is slaving the program off of it when you have the other 4GB installed along with. The 4GB modules you have are not correct for it.
Best solution – return what you bought and get a proper 8GB kit 4GB x 2 from the link above and you’ll be at 8GB and sailing smooth. :)
Hey there. Just looking at the specs of the RAM you suggested, it has 204 pins, while according to the macbook user guide (http://manuals.info.apple.com/MANUALS/0/MA656/en_US/MacBook_13inch_Aluminum_Late2008.pdf) it says the RAM needs to be only 200 pins. Will this be a problem?
Thanks
The correct memory for the MacBook5,1 machine is 204 pin DDR3. DDR3 SoDIMMs are 204 pin while the prior generation DDR2 memory is 200 pin. I suspect that is a rare typo in the Apple manual.
Tony,
I was just wondering if their suggestion to get their RAM (OWC) worked for you?
I’m having the same issue as Eathan Bell:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
When I attempt to install, I get “Your computer does not need this update”.
Has anyone tried this on 10.9 without having done the EFI update? Success?
@Eathan Bell, maybe you didn’t read this entire article, but you need to update your boot rom. Its 4 versions to old. Here is the latest version http://support.apple.com/kb/DL1502
Then I would do a clean install to Mac OS 10.9 Mavericks when it comes out later today.
And finally after a fresh install do a restore from a Time Machine backup.
Having an older OS then Snow Leopard will not affect the ability to install 8GB of memory. It sounds like you have some defective memory. I would recommend running Apple Hardware Test or Rember to see if the 8gb of memory tests defective.
Thanks for the suggestion. I went into Single User mode, did a memtest with both sticks in, and got some “Data Mismatch” errors. After consulting Googe, someone on another forum mentioned to do a memtest with each stick at a time. I did just that, and found out that only the one stick had the errors. For now I am using the working 4GB stick and an older 2GB stick, and it works just fine. I know it’s recommended that you upgrade both sticks at a time, but for now this will do. Thanks for the help. :D
Btw, is that other stick just unusable, or is there anyway to recover it?
Quick question, am I able to still do this if I have a newer OS clean installed? Meaning Snow Leopard was not on the hard drive before install. Mountain Lion in my case.
My specs:
Macbook5,1
Intel Core 2 Duo
2 GHz
4GB RAM
Boot ROM MB51.007D.B03
I bought some Mushkin Apple memory, 8GB(4GBx2) of course as the article is regarding. Installing it worked fine, no three beeping as others have had… but after a while I noticed slow downs and some even odder things, like files seemingly disappearing and programs not opening because of missing files. This was about a week after using it. I put back in the 4GB RAM and everything is fine now. Is this because I didn’t have something installed that Snow Leopard would have had, and Mountain Lion doesn’t have now? Or is it just because I maybe need to wipe my hard drive, install a fresh OS, and go from there? Should I try to just run 6GB of RAM?
Also, resetting the PRAM did nothing.
Thanks in advance for any advice.
A couple of weeks ago I replaced 2x2GB Mushkin DIMMs with a 2x4GB kit from OWC. Since then my MacBook Pro [5,1 running 10.6.8] has experienced random freezing. Seemed like the first day or so was fine, and then it freezes randomly….anywhere from once to several times a day.
Seems like other people have had success with the 8GB configuration. I’m going to swap the new RAM for the old and see if the freezing goes away; however, all tests on the new memory appears fine, so I’m not entirely convinced it’s the RAM.
I have run Apple Hardware Tests, MemTest86, TechTool Pro memory tests; within the OS I ran Rember, which tested 6.8GB with no issues. ALL tests on the new 8GB have good results.
Perhaps the freezing is coincidental to the new DIMM installation, and maybe coming from somewhere else?
Disk Utility shows no issues, and SMART status is ‘verified.’
I put my Seagate Momentus XT 750GB (ST750LX003, 2nd gen hybrid HDD, SM12 firmware) in a PC and ran Spinrite. Besides a few instances of overheating, it did not identify any issues. Although, there were lots of seek/ecc errors, but I’ve seen that on many Seagate drives.
I will be upgrading to an SSD this week anyway.
I’ve seen some forum posts recommend enabling a 64-bit kernel to fully support the 8GB….. I can give it a shot. Anyone have thoughts/experiences for the 64-bit kernel?
I’ve also reset the PRAM and SMC a couple of times.
Some people say the 2.4GHz MBP 5,1 is stable with only 6GB instead of 8. Yet, others report being happy with the full 8GB.
I’m still trying to figure this out, but as I said, .. the new OWC memory does test fine with all the memory testers I have used so far. Anecdotally, the system freezes began around the same time as the 8GB upgrade. Perhaps it will get cleared up with the SSD. [The hybrid Seagate has served me well for 2 years, and did offer a nice speed boost.]
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Sudden Motion Sensor:
State: Enabled
Hi,
when I put 2 modules of 4gb of ram in my macbook, doesn’t startup and make 3 beeps. If only put 1 module of 4gb and another one of 2 runs fine ¿Wich cual be the cause? This is my computer:
Información del hardware:
Nombre del modelo: MacBook Pro
Identificador del modelo: MacBookPro5,1
Nombre del procesador: Intel Core 2 Duo
Velocidad del procesador: 2,53 GHz
Cantidad de procesadores: 1
Cantidad total de núcleos: 2
Caché de nivel 2: 6 MB
Memoria: 6 GB
Velocidad del bus: 1,07 GHz
Versión de la ROM de arranque: MBP51.007E.B06
Versión SMC (sistema): 1.33f8
Número de serie (sistema): W88471H11GN
UUID de hardware: EF463963-36EC-54B4-9B15-37DF76E46753
Sensor de movimiento repentino:
Estado: Activado
Greetings ans thanks
Glad to see I am not the only one having the problem with the 2x4GB of RAM (which I got in my case from OWC). I have OSX 10.9.5.
Which version of OSX do you have?
I need to get one 2GB of RAM to see if I can get to 6GB.
My MacBook 5,1 meets all the requirements but I run 10.5.8, I understand that I need to be running 10.6.6 at least to take advantage of 8gb on the mac osx but does anyone know if I can use 8gb with Ubuntu 12.04.3? I would upgrade the osx also but I would like to use this laptop mostly for Linux. Thanks.
I was also wondering if I could upgrade my Macbook 5,2 (MB52.0088.B06) to 8gb? I know you tested it and you found that it can only take 6gb but there are a few people who say it works. I think it may be a similar situation to the Macbook 5,1. Is there any reason 8gb would work on 5,1 and not 5,2?
While 8GB can be installed, only 6GB is addressed in those systems. Once 6GB of use is exceeded, the machine slows down to a crawl.
Isn’t that contrary to what this article just said?
I thought it said you can use the 8gb if you have the bootrom. Does yours have the proper bootrom?
It is not contrary – that model of machine was not listed in the article.
Sorry Id like to just aks with Mbp 3,1 I should just go with 6gb of ram I keep reading so much mixed info on whether I can go with 8 or 6 gb of ram.
The MacBookPro3,1 models are OWC Certified for up to 6GB of memory.
hello! these are the data from my mac
Model Name: MacBook Pro
Model Identifier: MacBookPro 5.1
Processor Name: Intel Core 2 Duo
Processor speed 2.4 GHz
Number of Processors: 1
Number of cores: 2
L2 Cache: 3MB
Memory: 2GB
Bus Speed: 1.07 GHz:
Boot ROM Version: MBP51.0007EBO6
SMC Version (system): 1.41f2
Number of serious (system): W89158K38Q1
Status: Active
works for 8GB RAM? and they’d give me recommendation to improve it?
that SSD? thank you very much
Model Name: MacBook Pro
Model Identifier: MacBookPro 5.1
Processor Name: Intel Core 2 Duo
Processor speed 2.4 GHz
Number of Processors: 1
Number of cores: 2
L2 Cache: 3MB
Memory: 2GB
Bus Speed: 1.07 GHz:
Boot ROM Version: MBP51.0007EBO6
SMC Version (system): 1.41f2
Number of serious (system): W89158K38Q1
Status: Active
Yes – as long as you’re running OS X 10.6.6 or later you can use 8GB of memory.
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Serial Number (system): W88492481GN
Hardware UUID: 7C4AA6EC-CFEA-545C-88FA-F2582BEB5391
Sudden Motion Sensor:
State: Enabled
This my machine’s specs: What should I buy to upgrade to 8gb ?? Should I just get 4gb and add it or the two slots I have are used and I need to get an 8GB and take the ones I have in my machine out??
Do you have any suggestions on what brand that worked best with this particular Macbook Pro late 2008??
Thanks for clearing up most of the confusion that we have by writing this great article
Ghassan
There are two memory slots in the MacBook Pro, so to get 8GB you need to install two 4GB modules.
hello , can i upgrade to 8gb of ram?
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Hardware UUID: FDFC1192-3373-57DD-A73E-E34C9DCFB865
Sudden Motion Sensor:
State: Enabled
thanks
Yes.
Hey there! Great article and thanks for all the info and your effort…
I have a couple of questions though…
I already have 4Gb RAM in my late 08 macbook pro… Since I installed Lion, the mbp is a bit ‘laggy’… Thus, although I can extend it to 8Gb Ram based on this info, I’m also considering a SSD.
According to your opinion, which is gonna improve the performance the most? Which is more appropriate? Ram, SSD, or both?
Since I wanna buy a battery as well, i’m asking for your opinion so i can order all three (or two) items together…
Thank you for your time…
Greetings from Greece
For speeding up your Mac, the first thing to do is add more memory – then upgrade to a SSD.
I’d also like to chime in here with the reminder that if you do upgrade to both 8GB and an SSD (which made a world of difference with my MBP of this model), make sure you install each upgrade one at a time, making sure that the first is working properly before upgrading the next. In the rare instance that something goes wrong during the installation, this makes it much easier to determine the cause of the problem.
Thank you both for the immediate replies. I think i’ll go with the RAM upgrade and then i’ll move on to a SSD. I feel that LION requires more RAM. Although my mbp runs smoothly, it lags a bit compared to the older versions of OS. Taking your replies into consideration, i believe that more RAM is necessary and will make the difference.
I’ll keep in mind both of your experienced opinions.
Regards!
P.S If it’s not much trouble to you and since i’m gonna buy all items from OWC (RAM, SSD, battery), could you suggest a 120Gb SSD for my late 08 mbp? Should I go with the mercury electra 3G? Is there any alternative you’d suggest?
Thank you in advance!
For the Late 2008 MacBook Pro the Mercury Electra 3G SSD is the one to get.
Thanks again for all the info! I really appreciate your immediate responses!
Take care
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): 73909PES1AQ
Hardware UUID: 4976C865-E1BC-5F59-AFE5-765AD38879AD
Sudden Motion Sensor:
State: Enabled
can i install 8gb of ram???
You have a Model ID Macbook5,1 machine with Boot ROM Version MB51.007D.B03. Yes, if your OS X version is 10.6.6 or later, you can run 8GB of memory in your machine.
i have
Modellnamn: MacBook
Modellidentifierare: MacBook7,1
Processornamn: Intel Core 2 Duo
Processorhastighet: 2,4 GHz
Antal processorer: 1
Totalt antal kärnor: 2
L2-cache: 3 MB
Minne: 5 GB
Busshastighet: 1,07 GHz
Boot ROM-version: MB71.0039.B0E
SMC-version (system): 1.60f6
It will not run on 2x4gb RAM, 4+1gb RAM is working.
What do I need to do?
Best regards
Peter
Try trading out the 4GB module to see if the issue is with the individual 4GB RAM that you currently have outside them computer. It may need to be replaced. Please contact our Technical Support Team at 1(815)338-8685 via live chat or email and they will be more than happy to assist in further troubleshooting if both 4GB modules work or to exchange the failed module.
Dear team, thx for this great article and your research beforehand. I have a Macbook Pro Late08 (2x2GB RAM) and I unfortunately broke one of my RAM slots. 1 golden pin is bent – I really don’t know how it happend and I don’t know either what to do right now because I didnt manage it to bend it back – so I only have one RAM slot yet … 2GB is too slow …
I consider to buy a 4GB or even a 8GB card for my remaining slot. Is this possible or should it always be splitted into 2 slots? Is there an recommendation for a 1x8GB RAM? There are 4 screws on the RAM slot-frame – is the whole deck removeable? I mean, is there a chance to get 2 RAM slots back into my Macbook or should I try harder to bend this golden pin back into its position? Thx so much! Greetings from Vienna, Austria, Europe ;-)
Your best bet is to bring that machine to Apple or an Apple Authorized Service Center to have the slot itself repaired or replaced (and depending on what exactly broke, it might be the whole board that gets replaced – so have them quote you a repair cost before they begin any work).
However, in the meantime, as long as the firmware update has been applied to the machine – you can install a 4GB module in the working slot to get you almost back to where you were (memory-wise at least). You’ll lose out on the dual-channel addressing, but you’ll have the same amount of overall memory. So you shouldn’t see too much of a performance hit from where you started.
As far as replacing with a single 8GB modules goes, we tried it when 8.0GB PC3-8500 DDR3 1066MHz 204 Pin SO-DIMMs first became available. Unfortunately, it doesn’t work. It is a 4GB per slot maximum.
Hi, I have a late 2008 unibody Mac and the correct Bootrom version for MB5,1. However, a few weeks after installing 8GB RAM my computer started freezing and getting kernel panics. This disappeared after I swapped back to the original 2x1GB RAM. Also, with the 2x4GB RAM, when I tried to clean reinstall the OS, it would not proceed beyond a certain point. This issue was also solved with swapping back to original RAM. Do you think the RAM was faulty? Or should I just upgrade to 6GB/4GB instead?
The 8GB kit of RAM OWC recommends for a Macbook 5,1 is:
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
I would recommend contacting our Technical Support Team at 1(800)275-4576 via live chat or email to help troubleshoot.
Hello, I believe I fit all of the specifications of the upgrade without any changes. Since this is not supposed to happen (yet it is), does it matter how many MHz the two 4gb sticks are? I know the current is 1067, but can it be more? Like 1600 for example?
Thanks
This is the correct memory: http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
This is a commonly asked question. We only recommend memory modules that are the proper speed for that computer. Every once in a while we will find a computer that we have tested and confirmed higher speed modules are stable and beneficial. It is only at that time we recommend higher speed modules
Hi, I have the Unibody MacBook 13″ aluminum (MacBook5,1) and have downloaded the EFI 1.4 update already. However I don’t recall exactly *when* I downloaded the update, whether it was before or after Apple snuck in the “secret” 8 GB update. My BootROM version is MB51.007D.B03. Did the “old” (non 8 GB) version of the update use the same version number, or is MB51.007D.B03 definitely the version that supports 8 GB? Thanks!
“MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03”
Sounds like you’re all set. :-)
OK, so they did change the BootRom version number when they released the 8 GB update version. Good to know! Time to go order meself some RAM!
I want to upgrade my 5,1 Mac book, 2GHz, 2gb all specs correct (except still on 10.8.5 so will upgrade to Snow Leopard)
but can I use PC3-10600 DDR3 1333MHz SO-DIMM
instead of PC3-8500 DDR3 1066MHz SO-DIMM??? Could that make it faster??? Sorry am a layman when it comes to tech stuff
This is a commonly asked question. Every so often we will find certain model computers can benefit from faster memory, like the 2011 MacBook Pro. For a MacBook5,1 we have found no benefits of 1333Mhz memory being installed into this model, so we only recommend the 1066Mhz memory.
My Macbook is Macbook 5,1 with Boot ROM Version MB51.007D.B03 looking to upgrade my memory to the max. I am also running Mac OS X Lion 10.7.5. After following your directions, I was unable to install the EFI Firmware Update 1.4. Is it because I am running Lion?
If your Boot ROM version is already MB51.007D.B03, then you’ve already updated your firmware.
Thanks for your response. So I can get my Macbook up to 8gb right?
That is correct.
I bought identical memory from a reputable brand (because I can get it off the shelf and the need was urgent) and it doesn’t work – just giving me 3 long (and sometimes 3 short in-between) beeps.
I’ve tried all combos, all slot options and no difference is forthcoming
You guys sound pretty confident that OWC will work, and you’ll guarantee it? I’m in the netherlands, so the shipping is the real challenge.
Just in case, here are the Mac’s details:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Serial Number (system):
Hardware UUID:
Sudden Motion Sensor:
State: Enabled
if confirmed, I’ll order soonest – thanks
Model Identifier: MacBookPro5,1 < -- correct model Boot ROM Version: MBP51.007E.B06 <-- correct Boot ROM version That's all you need to confirm that the RAM will work. Here is a link to the correct modules: http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
We do not support other brands nor different speeds/configurations outside those that we have qualified through our MaxRAM Memory Certification Program. All OWC Brand memory is designed to meet or exceed manufacturer specifications and is backed by industry-leading lifetime advanced replacement warranty.
Hello,
The following are my specifications, I believe I am good to purchase the memory you reference in this article, correct?
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Hardware UUID: A00AFBE8-79FE-5748-9701-AA63E0A67EA4
Sudden Motion Sensor:
State: Enabled
Thanks!
Yes. You are.
I know is the wrong article, but i cant find a solution, Michael do you know if there’s a way to modify The Efi o somenting on my macbook pro
Model Name: MacBook Pro
Model Identifier: MacBookPro6,1
Processor Name: Intel Core i7
Processor Speed: 2.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache (per Core): 256 KB
L3 Cache: 4 MB
Memory: 8 GB
Processor Interconnect Speed: 4.8 GT/s
Boot ROM Version: MBP61.0057.B0F
SMC Version (system): 1.57f18
So i can get 16gb ram?
Your 17″ MacBook Pro – Mid 2010 is OWC certified for up to a maximum of 8GB of memory.
Worked like a charm. Thanks!
I meet all of the requirements.
13 inch 2.4 Ghz MacBook (Late 2008) running 10.8.2
MacBook5,1
MB51.007D.B03
The most I can get the system to run is 6GB, is this it for my machine or am I missing something?
When I install both 4GB modules I get a kernel type error on load up screen. DOS like text/ code.
I can’t imagine how as I have read this and other articles up and down multiple times before I even ordered my Apple 1066 RAM so as to NOT have this problem!!!
I ran each 4GB module separately to make sure one isn’t bad. They are both good.
I even reset PRAM.
Could it possibly be the Apple RAM?
Please help
Thanks in advance!
It is certainly possible.
This is something that should be made abundantly clear…you are reading the OWC Blog, which is the Official Blog of Other World Computing. We have been providing quality hardware products and support to the computer industry since 1988 and feature one of the largest online catalogs of computer, iPod, iPhone, and iPad enhancement products through our e-commerce portal http://www.macsales.com.
When it comes to memory (RAM) all of our testing and qualifications are expressly performed with OWC Brand memory.
All OWC Brand memory:
Additionally, we qualify our memory through an additional, independent compatibility tests. The OWC ‘MaxRAM’ Certification Program determines the maximum amount of memory that can be installed in a Mac as validated by a series of comprehensive, in-house laboratory tests. While OWC “MaxRAM” configurations exceed Apple’s officially supported maximums, all OWC brand memory upgrades are assured to perform flawlessly and are covered by a Lifetime Advance Replacement Warranty and Money Back Guarantee.
Hello, I have a late 2008 MacBook Pro running Mountain Lion 10.8.2 with the following specs:
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.5 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.28f3
Serial Number (system): YD91351B3R8
Hardware UUID: 52491FB1-FAB1-5C53-A8A1-907E19A33FED
Sudden Motion Sensor:
State: Enabled
I have a Western Digital 1TB HDD installed and am needing to run Windows due to some software I need for business that only runs in Windows. Can this MBP be upgraded to 8Gb?
Many thanks for any help you can offer!
No, this article refers to the MacBookPro5,1 , not the MacBookPro4,1 .
The Apple MacBook Pro 15″ & 17″ – Early 2008 (Model Identifier: MacBookPro4,1 ) models are OWC certified for up to 6GB of memory.
Hello Michael. I upgraded my 5,1 to 8GB RAM (running on Mountain Lion and I have all the firmware requirements) with AVANT 4GB DDR3 SODIMM 1066MHZ ROHS around 2 weeks ago. The computer was so much faster….BUT then apps started crashing. My browsers crash 5-6 times a day, my apps crash, my computer shuts down out of the blue…this never happened with the slower RAM. So I removed it and put the old RAM back in. Do you have any suggestions, other than buying your own brand? Does this sound like bad RAM? Thanks! Emily
Hi,
I know this is an “old” post but it doesn’t work for me. I bought the CORSAIR SO-DIMM DDR3 For MAC – PC3-8500 – 2 x 4 Go (8Go) 1066 MHz – CAS 7 – CMSA8GX3M2A1066C7 kit. When I boot the MBP, it beeps three times.
I don’t understand why though: I’ve checked 10 times the RAM specs.
Thanks !
We only sell and support OWC Brand Memory.
Beeps at startup usually suggests mis-seated, incompatible, or defective memory.
This is the correct memory here:
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Hey,
yeah, I’ll ship back the ram I bought and get the one you showed me.
Thanks a lot
When guys dropped in the 8GB kit did guys just pick a manufacturer randomly or do you prefer one. I’d like to upgrade but unsure which kit to get. Can you help direct me?
Pick memory randomly? – Absolutely not!
Other World Computing sells and supports OWC Brand memory only.
Here is the link to the memory kit referred to in the article:
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Hello, I have a late 2008 MacBook Pro running Mountain Lion 10.8.2 with the following specs:
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Serial Number (system): W89203818Q1
Hardware UUID: 57AE2375-63DD-5E1D-BF3F-1C93D6CA7AFB
Sudden Motion Sensor:
State: Enabled
May I safely upgrade to 8 GB’s of RAM? It seems from the article that I should be ok doing so?
And if all looks good, is this what I want?: http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Thanks in advance for any guidance!
Yes, you’re good to go with the memory you’ve chosen. Upgrade away.
Thank you so much for your quick response! You don’t anticipate I’d have any problems whatsoever? I’m nervous as Apple officially only recommends 4 GB’s. By doubling to 8 GB’s I’m not going to risk hurting my machine at all? Sorry if I’m asking you to repeat yourself, I’d just like a little more peace of mind before I move forward.
I’m looking into more RAM is because my machine is starting to feel sluggish, and a little “sticky” (if that makes sense…), but I’m also thinking about doing an archive and clean re-install, and possibly replacing my internal hard drive. Money is a bit of a factor at the moment, so I’m looking at possibly doing all of this, over time, but I’m curious, in your expert opinion, about the order in which I should try these things. Should I try replacing the hard drive first? Or getting the RAM? Or the archive/re-install? Will doing an archive and re-install be worth the trouble and the time?
Just some background: I don’t do anything too hardcore with my MBP–but I do a lot of surfing on the web using Firefox, with LOTS of tabs open, sometimes I might have Safari or Chrome open, too, and I have Spotify running in the background, and possibly Tweetbot and another Twitter client—maybe the old Tweetdeck, Mail, Transmit, uTorrent, NetNewswire, and Messages….but I have been trying to keep my open apps to a minimum, because everything has been seeming more and more sluggish. I would probably run more, if it didn’t slow down my machine much. I thought 4 GB’s of RAM would easily be able to handle what I’m doing. Do you think upgrading to 8GB of RAM would be a noticeable difference?
Any of your general thoughts on all of this would again be much appreciated! Thanks!
We’ve been successfully exceeding Apple’s officially supported maximums for quite some time through our OWC MaxRAM Memory Certification program. Plus, all OWC brand memory upgrades are assured to perform flawlessly and are covered by a Lifetime Advance Replacement Warranty and Money Back Guarantee.
Now, given what you do on a daily basis with your computer, RAM is definitely the first place to start. More memory allows you to run more processes at once and with all those pages on all your browsers, all those social clients, and the other programs you have running at the same time – you’re probably running short on memory quite often.
Got it, I will order the RAM soon, thanks! Do people notice a big difference when upgrading from 4GB’s to 8? Also, in general, do you recommend an archive and clean install every once in a while? I’ve had this computer since May ’09 and its gone through several OS X upgrades, so I’m thinking a nice new clean install of Mountain Lion might be good? Some claim it will speed things up, but it’s seems like a bit of an extreme measure to me, and I don’t like taking risks w/out feeling the benefit would be worth it… And I guess I really need the new hard drive eventually as I’m always running out of space. I try to always keep at least 10% of my drive or 20 GB’s free, as that’s what many suggest. I’m also looking into the possibility of using iTunes Match to save space in that department and I use a 64 GB thumb drive, so that’s helping a bit. Sorry for my babbling, I’m sharing a bit much with the hopes it might help others whose machines are slowing down and running out of space as well.
Yes, the difference between 4GB and 8GB of memory can be quite drastic as evidenced by our benchmarking results.
A clean install of your OS and a migration of your user account(s) can help with speeding up a machine that has been neglected for maintenance. It will clean up files that are no longer used, preference files for apps you’ve deleted, miscellaneous cache files, etc. and that can account for some sluggishness.
However, a good rule of thumb is that a hard drive should not be kept higher than 80% capacity. If you are consistently crossing that threshold, then you will want to move some of the data to an external drive or simply upgrade to a larger capacity internally. If you’ve hit that 10% left mark – then you’re in critical need of more storage. Think of it like a room full of bookshelves – as long as all the books still fit on the shelves themselves, then you can still walk into the room and find everything. Once you start piling books up on the floor, you’re making it more difficult and a bit slower (but not impossible) to find the tome you’re looking for. If all the aisles are now covered with books and you’re crawling over piles and moving books from one cramped space to another cramped space just to read the titles – things are definitely getting slower. You really need to open up the space somehow (before filling it all the way up) in order to become efficient again.
Upgrading to a larger drive (which sounds like an important next step for you) provides the perfect opportunity to install a fresh copy of the OS onto the new drive and use Migration Assistant to bring all your data over to the new drive.
I ordered the memory and so that’s on it’s way and I will see how much that improves my system and will certainly be reviewing and considering this other info you’ve linked to, as well. Thanks again for all your advice and help! Much appreciated!
Hello, first of all a compliment for your expertise , but im curious about one thing, i have a MBP 5,1 and have updated the firmware 2.8, but my BootRom does not change it stays as MBP51.007E.B05, have you any ideas of how to solve this dilema, im running 4gb memory, and as from today thanks to your research and site, i yearn for 8 gig…hope i can get this sorted out….thank you in advance for all your support anyhow……regards Peter.
MacBook Pros with a Model ID of MacBookPro5,1 should have a Boot ROM Version of MBP51.007E.B05. You don’t have a dilemma – you’ve got a machine you already updated to the right Boot ROM version.
Thanks for the quick reply, does that mean im good to go ? i can load 8 gb (2x4gb)…..if it is youve made me the happiest man the Netherlands, for now that is :-)
That certainly does mean you’re good to go. ;-)
Great, does this apply ti 2007 24″ Imac7,1 can i bump this also to 8 gig, ive got 4 now ?
The Apple iMac – Mid 2007 (Model ID: iMac7,1) has been OWC certified for up to 6GB of memory.
Thanks, guess ill be upgrading em all, thanks again.
Hi! I have a Macbook Pro 15 inch late 2008 Boot Rom MBP51.007E.B06. Can I install a 16GB stick? I know it’s really wierd to have that much memory but I am just curious. Thanks in advance.
Individual 16GB 1066MHz DDR3 (PC2-8500) SoDIMM RAM modules are not available to test.
I use a Virtial Machine and Movie Editing Programs. What RAM would you recommend? (How much GB and what should be the clock?)
For video editing, you’ll want as much as your setup can use which, as is the topic of this post, is 8GB of OWC memory.
I just upgraded to 10.8.2. The computer place I used to do this told me I could run 8GB in my 2.5 GHz early 2008 MBP 41.00C1.B03. I didnt believe it, but then he popped it in 1 at a time. The first time it did the 3 beeps, so he did something and reinserted it and then the other, and sure enough it showed 8GB 667 Mhz DDR2 SDRAM. I think I already know the answer, but with my system, will it pose problems like shutdowns and overheating? And even though it showed 8 GB, would it really get the whole 8 with my system? Thanks for your time and patience. I am slowly learning about all this stuff.
The MacBook Pro Early 2008 models are OWC certified for up to 6.0GB of OWC memory. Once the 6GB mark has been exceeded in actual memory usage (not just having it installed in the machine – but actually being addressed) the system slows down and/or loses stability. As such we do not support 8GB of memory in those machines.
can i upgrade to 8GB of RAM with a Model ID of MacBook5,2 running 10.8.8?
The MacBook5,2 model is OWC Certified for up to 6GB of OWC memory.
Hi guys, thank you for your profound work!
I have all the specs listed in your article and my MacBook late 2008 is running with 8GB memory.
But when I start a program that uses a lot of RAM (FilterForge) my Mac just shuts down. It goes black and I have to restart. Everything I’ve done is lost.
It did not do that with 4GB.
i am running Kingston KTA – MB1066K2/8G (9905428-005.A02LF)
well, for testing purposes I am running at the same time: Safari, FilterForge, Mail, Cinema4D R11, Poser Pro12, iPhoto, Photoshop CS6, Google Earth, iTunes, InDesign CS6, skype, Word 2011. (all legal – before someone asks)
It uses 4.97 GB memory out of 8 … and it seems to work. I have MacOS 10.6.8 … I switched the two 4GB with each other and I plugged my machine back to electricity (which I did not the last time).
So it works and my last question is obsolete. (please excuse my weired english – not my native language)
Our OWC ‘MaxRAM’ Certification Program determines the maximum amount of memory that can be installed in a Mac as validated by a series of comprehensive, in-house laboratory tests – which we perform and support only with OWC brand memory upgrades which are designed to meet or exceed all manufacturer specifications.
Hi i have the Macbook 5,1 and the right ROM version from the article, but after inserting one or both of my 4gb ddr3 1066cl7 rams my macbook makes the 3 beeps over and over. how can i force the efi firmware, i think i updated with the old one when it came out. every help is appreciated.
Three beeps indicates the system can’t find the memory at all. This can be caused by a couple of things:
1. Incompatible memory. This is the right memory here.
2. Improperly installed memory. Try one at a time making sure the memory is fully seated. If it isn’t pushed in all the way, it can’t be accessed.
3. Bad memory. If one of the modules has failed, it will need to be replaced. Luckily all of our OWC Brand memory comes with a Lifetime Advanced Replacement Warranty for just this reason. Checking the modules one at a time will also let you know if you have a bad one.
4. While rare, it could mean the memory slot itself has gone bad. Try installing the original memory again and if it doesn’t boot the machine either, you may need to go to Apple to have the memory bay repaired.
can i upgrade my late 2008 macbook with 8gb if i’m running version 10.8.2. on my laptop
As long as your late ’08 MacBook has a Model ID of MacBook5,1 and a Boot ROM version of MB51.007D.B03, then yes.
I’ve installed the 8 GB RAM (2 x 4GB) that I just received from OWC (fast, BTW!) but it is only recognizing 4 GB. I went back in and reinstalled the RAM panels carefully, snapping them securely in place, but it is still only recognizing 4 GB. Am I missing something? All the specs seem accurate to a ‘T’. Help! I’m running 10,6.8 and ere are the specs as they’re showing:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W8848K5N1AX
Hardware UUID: AC1E04B8-E570-5669-B902-32110EF118B4
Sudden Motion Sensor:
State: Enabled
While rare, it is possible that either the memory itself or the RAM slot is defective.
To determine which go to System Profiler > Hardware > Memory and make a note of which memory bank is showing the memory as active. Then physically swap the modules. If the issue follows the memory, then contact our Customer Service team to arrange for a replacement. If the problem follows the slot itself, then you will want to contact Apple for the repair.
Whether that was it, or just a case of 3rd time’s a charm, I switched the modules and voila… it’s recognizing and running at 8 GB. It’s like a new computer! Thank you very much for your help. I’m very pleased.
profiler says Boot ROM Version: MB51.007D.B03 but updater says this computer does not need this update. macbook 5,1 running 10.8.2 should my machine see the 8gb if I order it or is something other process needed?
As stated in the article: “MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03”
You have the correct Boot ROM version for your machine – you can upgrade to 8GB of OWC Memory with confidence.
Hey, so I checked out my system and everything looks good! The only thing I need help with is finding the right ram chip to buy for it. If you guys could link me to some sources that would be awesome! Thanks!
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
I have followed all these instructions, I am using a Mac Book Pro5,1 late 2008 on, MBP51.007E.B06 Mountain Lion OSX 10.8.2.
I have added the RAM but on the about this mac section it only says 4gb for the memory?
Check the connections of the memory – it sounds as if one of the modules isn’t seated fully.
Now the big question is: can it support 16GB of RAM now that 2x 8GB sticks are cheap?
No, 8.0GB PC8500 DDR3 1066MHz individual SoDIMMS aren’t available.
Aww. Darnit
Hey guys, great article! Was on the fence about upgrading my memory to 8gb but will do so now. I have model id MacBookPro 5,1; boot rom ver MBP51.007E.B06; OS ver 10.6.8. Everything checks out according to this article but was wondering, would I need to run the OS in 64 bit kernel once I upgrade my memory? I’ve read in some forums to do so and some say you don’t have to. Sorry if this was already addressed earlier in the article. Anyway, thanks in advance!
OWC memory is fully supported up to 8GB in those machines after the firmware update – regardless of running in 32 or 64 bit.
If I have a MBP 15″ 2.4Ghz Late 2008 5.1, with the newest firmware installed but am lacking an Express Card Slot, could I still update to 8GB Ram? My computer is extremely slow and I’d like to try smth before actually buying a new one. On an unrelated note, does the new 2012 MBA outperform the old 2008 MBP?
yes, the 5,1 MBP is 8GB capable. Our 8GB PC8500 Memory kit is fully recognized by this model with the current EFI.
http://eshop.macsales.com/item/OWC/8566DDR3S8GP/
The 2012 MacBook Air is faster than the 2008 MacBook Pro. The i5 and i7 Processors in the MBA are a several generations ahead. That being said, your existing 2008, with an SSD and the memory needed isn’t very far off for many normal uses.
Hi Guys
I have a MacBook Pro 15
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.16f11
Serial Number (system): W880815DXAG
Processor 2.6 GHz Intel Core 2 Duo
Memory 4 GB 667 MHz DDR2 SDRAM
Your computer’s firmware is up-to-date with version 1.5.1 of the MacBook Pro EFI Firmware Update.
My question is can, I upgrade memory from 4 to 8GB ?
Thanks for your help
The Apple MacBook Pro 15″ & 17″ – Mid 2007 models (Model ID: MacBookPro3,1) are OWC certified for up to 6GB of memory.
hey guys….
ive got a mac that has and hasnt been addressed….
ive got a late black macbook model4,1 that the article said was initially affected. then it goes on to say though that this model # doesnt need the efi update. BUT – nowhere else is anything mentioned about whether it can take 8gbs of ram…
so again, ive got a late 2008 BLACK MB MODEL4,1 that allegedly doesnt need the efi update…
can i install 8gb of ram or am i stuck at 6? (and therefore being uneven which i heard isnt that great…)
thanks so much guys…you guys really do rock! :)
The MacBook4,1 models are OWC Certified for up to 6.0GB of memory.
ya thats what i thought…just needed to make absolutely sure…
thanks guys…you guys really do rock!
Hi guys love the article can my mac support 8GB of ram if so Ive tried to download the firmware on your page but when I try to install it says that my mac doesn’t need it. Here is the spec of my Macbook Unibody Cheers.
Josef.
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Serial Number (system): W89203U68QT
Hardware UUID: B0012B04-555B-55ED-9F13-B81486D1B049
There are only three small things to check to make sure you can run 8GB reliably on the Late 2008 MacBooks and MacBook Pros.
1.) You need the proper model machine: You have a Machine ID of MacBook5,1 – this is one of the models that are eligible, so you’re good there.
2.) You need the proper Firmware Revision: You have firmware revision MB51.007D.B03 – this is the proper firmware revision to run 8GB, so you don’t need to run the firmware upgrade – if you do, it’ll just say you’re already upgraded.
3.) You need to be running 10.6.8 or later: you didn’t say which version of OS X you’re on. An easy way to tell is to check your Apple menu – if there’s an option for the App Store, you’ve got at least 10.6.8
So, as long as you’re running 10.6.8 or later, you should be good to go.
Hi there I’m running osx 10.6.8 awesome thanks for the help and fast reply.
thank you for your support. I have a early 2008 macbook pro 15″ laptop. is there a way to get 8gb of ram? apple store the max is 4gb. when i talked to an apple tech in washington (main office), he had the same year and laptop as i do and he mention the max ram he was able to put in his was 6gb. he also install a 250gb sdd. do you have any idea how i can install 8gb of ram?
The early 2008 MacBook Pro 15″ models (Model ID: MacBook4,1) are OWC certified for up to 6GB of memory. This article does not apply.
Hi. I have all 3 requirements fulfilled (macbook 13” late 2008, MB51.007D.B03, OS X 10.8.4, 2x4GB installed) and my Mac recognizes that I have two 2GB memory cards….What am I doing wrong? Can I get 8GB on my laptop?
I would recommend trying the following trouble shooting tips:
Try a reseat (re-install the memory)
Try a SMC Reset
Try a NVRAM/PRAM Reset
Try booting your MacBook with a single stick of Memory
If you are still having issues or have identified a bad stick of memory please feel feel to contact our Technical Support Team at 1(800)275-4576 via Live Chat or Email to help troubleshoot
Thank you for this great article, very precise and clear, I had just bought my 8GB upgrade kit and was about to upgrade when I read in my macbook manual that I could only put 2x1GB or 2x2GB….!!
I googled “macbook alu 2008 8GB” and found all the answers I could wish for on this page, thanks :)
Hey, by reading this article I decided to buy the 8gb Ram (2x2gb) for my Macbook Unibody Late 2008. My computer is currently running mountain lion and has Model Identifier: MacBook5,1 and Boot ROM Version: MB51.007D.B03 as specified. When I installed the 8 gb set my computer was unable to boot up. Hope I can recieve some advice from you guys.
Try re-seating the memory – if it isn’t making connection fully in the slots, the machine won’t boot. If that doesn’t solve the problem for you, please contact our Technical Support Team at 1(800)275-4576 via live chat or email and they will be more than happy to assist in troubleshooting.
I had the same issue as James had. I purchased an 8GB RAM upgrade after reading this article. My Boot ROM Version is MB51.007D.B03. My Model Identifier is MacBook5,1. I have Mountain Lion. I called tech support and was not able to find any solution after speaking with a representative for over an hour. Have there been other similar cases? Is it possible that this does not apply to Mountain Lion?
It’s not likely a Mountain Lion issue, as I am personally running the latest version of Mountain Lion with all the corresponding software updates on a MacBookPro5,1 (which was pretty much an identical update) and I haven’t had so much as a hiccup with booting, save for the need for an SMC reset due to a janky power supply.
Unfortunately, the Blog comments are not really designed for troubleshooting; you’d be better served via our techs (possibly through email, to prevent hours on the phone). However, let’s see what kind of “shotgun” solution I can offer.
Troubleshooting something such as this is mostly a process of elimination. Try taking your MacBook back to the OS version and memory configuration prior to the 8GB and Mountain Lion, then upgrade one piece at a time. Since the firmware is already applied, it shouldn’t change, but double-checking in System Profiler wouldn’t hurt.
TI’d recommend starting with the memory – one piece at a time – and see if you can boot after installing. Then, add the other piece. If that works then UPGRADE (don’t just swap in a different drive) to Mountain Lion and see if it goes well there.
Just to clarify – I should go back to Snow Leopard (which is what I had previously), install the RAM, and then upgrade back to Mountain Lion?
In order to determine where the failure is happening, it’s best to rebuild one piece at a time. So, yes, go back to Snow Leopard and your original RAM configuration. Make sure that boots and works normally. Then, add ONE memory module. See if that works. If it does, add the second. If 8GB works under Snow Leopard, try upgrading to Mountain Lion via the App Store (if you purchased, should be a free download again). Don’t just swap out the hard drive to a 10.8 drive – that could be the point of failure, too. The trick is to change ONLY one thing at a time. Swapping out the drives would change two things (OS version and the drive itself).
If it works, then… well… it’s working. If it fails, you will at least have a better idea where the troubles are occurring. At that point, a call to our Technicians should help get you on your way.
Hi Ike, did you find any solution to this? I’m facing the same issue. Thanks!
Hi James, did you find any solution to this problem? I’m having the same problem here. Let me know, pls. Thanks!
hi i just purchased an 8g ram card for my late 2008 macbook 13in and i was reading that you have to do something with the firmware, i am currently running mac os x lion 10.7.4 and the boot rom version is MB51.007D.B03 Would i have to do anything besides put the 8g ram card in? Thanks owc
As stated in the article, if you have a Late 2008 MacBook, and a firmware revision of MB51.007D.B03, your MacBook should be able to recognize 8GB of memory.
You would get this 8GB by installing a pair of 4GB modules, not a single 8GB module. This is the kit you would want.
Hi Guys-
I would like to upgrade the memory on my late 2008 Unibody Macbook. It has the 2.4 GHz processor, with 2 Gb of RAM; it is totally stock, including original OS it came with. Is an 8 Gb RAM upgrade possible for a newbie like myself? It sounds like I may have to upgrade the OS first. Is that true? If so, in what order should I perform what steps?
Thanks
Upgrading the memory is easy. First, make sure you’ve upgraded your OS to 10.6.6 or later. Next check the boot ROM version to make sure it is updated (the OS update should do this automatically, but better to check to be sure.) Then install your 8GB of memory by following our easy how-to video:
http://eshop.macsales.com/installvideos/macbook_13_unibody_mem/
Thanks! I will try that.
Since I am going to have to update the OS anyway, should I do it to a more recent OS, ie Lion, etc?
There’s really no reason not to as each iteration of OS X offers a better computing experience.
hi guys, thanks for all the research, and info.!! however i still have a question … i dont know much about computers, i do know, that i want the 8 gb ram (2 X 4 gb)*
today i’been told in best buy that i should not buy the crucial, or other brand, because they’ve been having trouble with that, and i should just buy the kingston. in the other hand they told me to buy the 1067 ghz.
the i went to comp-usa, and a technician told me that mac work better with 1066 ghz…!!
i have a late 2008 MBA.
so now im a bit confused, and i don’t know what to buy…. 1066 or 1067 ghz ???
It’s the same thing – 1066 or 1067 MHz – has to do with how the manufacturer rounds the actual speed (rounding vs. truncating the actual number). We suggest and support OWC Brand memory in those machines.
Hi! i use macbook 5,1 unibody and use 8 gb ram but my OS is still 10.5.8 and i dont find any problem in it (my firmwire is updated to those u said). The point is do i need to update my OS to SL/lion/mountain lion? what’s the effect if i only use 10.5.8 with updated firmwire but installed 8 gb memory ram?
thx in advance
sorry for my bad english
You must be running Snow Leopard or later to address 8GB on these systems, and our testing was done with 10.6.6, which is the earliest version we’re currently supporting for this. We do not support 8GB of memory under OS X 10.5.8 on these machines.
Hi, I’m new to this upgrading thing so I’m not sure what I’ll be doing to upgrade my Macbook.
I have a macbook pro late 2008 model 2.53ghz intel core 2 duo. Currently, I’m running Mountain Lion on it, and installed the efi upgrade to stop the internal flickering. From what I read so far, this should be sufficient to be able to upgrade my RAM. I’m just stating it to confirm that I can, so, can I upgrade my maximum ram to 8gb?
Also, if I can already upgrade with these specs, what kind of RAM should I get? Is there a specific type of RAM to buy?
Thanks!
Your 2.53GHz MacBook Pro “Unibody” 15″ – Late 2008 is MaxRAM Certified for up to 8GB of memory.
Visit the links in this comment for confirmation details of your computer, more information on the OWC MaxRAM Memory Certification Program, and the correct memory for your machine.
Hey OWC, I just ordered 8gb of RAM from you guys yesterday, and it stemmed from me recommending a friend to your site. I started looking around and ran across this fact that I could update my late 2008 unibody. Just wanted to say thanks for doing such a kickass job at what you do. I’ve been using and recommending your site since about 2007-08. You guys have consistently done a great job and have been so trustworthy. I was steered to you guys from an Apple Care tech back then and it was the best Mac advice I have ever received. Keep up the great work guys!
can i also update my late 2008 macbook aluminium? it matches the id requirements, but is not listed.
The Apple MacBook “Unibody AL” – Late 2008 (Model ID: MacBook5,1) is MaxRAM Certified for up to 8.0GB of OWC memory.
Is 8GB of RAM 1333mHz okay for the Macbook Alum Unibody? Sorry, i havent got any concrete answer if this will work to replace the original 1067MHz RAMs..
The MacBook Aluminum Unibody uses PC8500 DDR3 1066MHz SO-DIMM memory, not the PC3-10600 DDR3 1333MHz SO-DIMM memory.
I have an old MacBookPro1,2
Intel Core Duo,
2,16 GHz
(MacBook Pro (17-inch) MacBookPro1,2 MA092xx/A 17″/D2.16G/1G/120/SD-DL)
Do you think this would be able to run more RAM than the 2GB it holds maximum?
The MacBookPro1,2 is MaRAM Certified for up to 2GB of memory.
OWC Michael i speak with your worker today. Now i have this macbook http://eshop.macsales.com/Descriptions/specs/Framework.cfm?page=macbookmid09.html
And my i have two question. I read that my macbook 5.2 can have 8 gb of ram
https://discussions.apple.com/thread/3345836?start=0&tstart=0
Can you confirm it.
And second question. I want to play future soldier. For play it in normal stage, without slow, without glitches… on what depend it much? I mean. For example, if i buy 6gb ram or 8 gb of ram? did the game will work normal, or if i stay with 2 gb of ram and buy new processor 2.30ghz will it work much better, or if i stay with 2 gb ram and 2.13 ghz processor, and buy new video card, what will happend if i don’t buy new processor and don’t buy ram, and buy new video card? how it will work? My question is that. When i buy 6 gb ram or 8 gb ram, what will happend with future soldier, is it will run normal.
Thanks
Best Regards
Plamen
Ok, we still only support up to 6GB of OWC RAM in those machines….Here’s why:
In our MaxRAM testing, we not only check that the memory shows up, but that it is fully being utilized by the system.
Yes, the machine can recognize when 8GB of RAM is installed – HOWEVER (and this is a BIG HOWEVER), when more than 6GB of memory is actually addressed, the system as a whole slows down and the hard drive is then relied on for paging / virtual memory. We have tested with the latest firmware update and that system slowdown above 6GB still does occur. So, as there is no system benefit to installing more than 6GB of memory, we simply don’t support it.
Now the second question…
This one has me a bit stymied – but it may just be some assumptions I’m making. Are we taking about “Tom Clancy: Ghost Recon – Future Soldier”? If so, AFAIK that game as not been released for OS X – so, you would need to emulate Windows XP SP3 or better to run the game in the first place and Ubi Soft’s System requirements for PC includes a minimum 2.2GHz processor – which the MacBook falls a little short at 2.13GHz. The processor and video card in your MacBook are not upgradeable parts either, so I really couldn’t recommend expecting smooth gameplay if you can get it installed on the machine in the first place – regardless of the amount of memory you upgrade to.
Model Name: MacBook
Model Identifier: MacBook3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MB31.008E.B02
SMC Version (system): 1.24f3
Serial Number (system): RM8123TJZ64
Hardware UUID: D66F4843-5AA0-5CA9-8176-466DCBAAEEA2
Sudden Motion Sensor:
State: Enabled
Can I Upgrade this to 6 or 8
6GB is max for a MacBook3,1
Hi Michael, would really appreciate your help on this one.
My specs:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
As you can see, I updated my firmware to the latest version. But after installing two 4GB RAMs, only one of them is working. My first guess is that my machine is still only able to recognize 4GB of RAM?
BANK 0/DIMM0:
Size: 4 GB
Type: DDR3
Speed: 1067 MHz
Status: OK
BANK 0/DIMM1:
Size: Empty
Type: Empty
Speed: Empty
Status: Empty
Would really appreciate some suggestions/advice on what I can try out to get them both working.
Thanks
Adrian
Doesn’t look like the DIMM1 slot module is making the full connection. Try switching the modules between slots and making sure they’re both pushed in all the way. If after switching the modules you still have a problem with recognition, at least the swap will give you a better idea of what you’re looking at – if the problem follows the RAM, then it could be a faulty module – if it stays with the slot, then there could be an issue with the slot itself.
Our technical support team would be happy to assist in troubleshooting. You can contact them at 1(800)275-4576 via email or live chat.
Switched the modules and now both work perfectly. 8GB of power, here we come.
Thanks Michael!
Hi friends,
HELP!
I recently helped my friend update her late 2008 13″ Aluminum MacBook . Before I upgraded, I ran disk tools, updated her to Snow Leopard with all updates then installed Mountain Lion and the installed the correct 8GB ram as this article advised.
While I was updating her programs the laptop did a silent random restart. It happened several times and once I got the new gray screen. I read some articles and reset PRAM and the SMC controller. It seemed to work fine for a couple of days but it started to shut down or gray screen again. Restarts some times give a message that ” your computer shut down unexpectedly” . Could this be faulty new 8GB Ram. I plan to put in 4 GB that came out of a similar MacBook and see it happens again but I’m worried that it may be Mountain Lion. She has had it happen both plugged in and battery.
Her MacBook is 5,1 core 2 Duo, 2.0ghz
Boot ROM MB51.007D.803
SMC version 1.40f2
Serial number W89170CM8QR
Hardware UUID A115E58E-47C5-5033-9918-9C1C1C7BD888
Sudden Motion Sensor: Enabled
Any advice is appreciated. I’ll take it o Apple if it’s the OS upgrade and have them down grade to Snow Leopard.
While it is possible that it could be the RAM, it seems at first glance that you did a lot of upgrading and updating all at once. The first thing I’d do would be to repair permissions on the hard drive. If that doesn’t take care of it for you, run Apple Hardware Test to see if it recognizes any physical component issues. If after both the restart issues are not corrected, contact our technical support team for further troubleshooting at 1(800)275-4576, via email or live chat. We’ll get you up and running again.
Hi guys,
can you confirm your 8 GB kit works with the following MacBookPro unibody late 2008 config :
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2,4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1,07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
OK,
Paul beat me I think :)
Just to let everyone know I ordered the upgrade with OWC.
Worked like a charm !
Woot! Woot !
Hi,
Below are the details of my Macbook. everything seems to be up to date but it still shuts down most of the times after a 2 or 3 of constant use. Am not sure if its a firmware problem or not… ( but my Firmware seems to be updated).
Can you help ?
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Hardware UUID: 3652B303-F288-52A4-A07C-9FDF3F3B83EE
Sudden Motion Sensor:
State: Enabled
For troubleshooting assistance, please contact our technical support department at 1(800)275-4576, via email or live chat.
Hi thank you for a great article, I thought I understood, however can you please confirm my MB will support 8gb? on mountain lion 10.8
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Serial Number (system): W89093S471A
Hardware UUID: 4A214F4B-795E-5F34-ACA6-CF8E4C1B2653
Sudden Motion Sensor:
State: Enabled
Many thanks
Yes, a MacBookPro5,1 model with Boot ROM version of MBP51.007E.B06 is able to use 8GB of memory in OS X 10.8
Hello! Your article was great thanks! I have a Macbook5,1. (2.4GHz core 2 duo) Boot ROM version of MB51.007D.B03.
Just upgraded to Mountain Lion, problem is when I tried to update it from the link you mentioned it says my laptop doesn’t need the update… Can I still upgrade my RAM to 8GB??
You have a computer with the appropriate ModelID (MacBook5,1).
You have the proper firmware revision for your model as listed in the article (MB51.007D.B03).
You are running 10.6.6 or later (10.8 is later than 10.6.6).
You can install 8GB without any updates.
Thank you for clearing that out!
My RAM currently runs at 1066MHz, would buying a RAM of 1333MHz cause any problem?
Lastly, what setup would you suggest to optimise the system, one 8GB card or two 4GB cards?
The recommended memory for that model computer can be found here. You will want the 8.0GB upgrade kit, which is a pair of 4GB modules.
Ok thank you!
Just upgraded to 8GB! The speed is amazing, thanks!!!
Thanks so much for your article!
as a follow-up to Rajivs question, I have a Macbook Pro 5.1 running Lion with with bootROM MBP51.007E.B06. I want to upgrade to 8GB of PC38500 ram but was wondering what the difference is btw 1066 and 1333? CL7 vs CL9?
The difference between the two is timing speed, cache latency, and machine compatibility.
Your MacPro5,1 uses PC8500 DDR3 1066MHz SO-DIMM Memory with a cache latency of 7.
So it looks like my 5,1 qualifies for 8gb (YAY!). Just wondering if there are any known issues with Mountain Lion? I upgraded today and wanted to buy some RAM asap but I am worried ML might have messed with my ability to use 8gb.
THANKS!
No issues were found after installing to Mountain Lion. Upgrade away!
Fantastic! Already ordered :)
Hello. I know that I am not going to get praised by everybody but question: if I run Windows 7 on my Macbook, will I be able to run 8gb without any trouble for stability of the OS?
I bought my MB in late 2008.
Please no “switch to OSX” answers as this is not the point of my question.
Thanks
Nick
Precision: I do not have the right firmware update. Any impact yet?
Perhaps I’m misunderstanding here – if you don’t have the latest update, then you can’t use 8GB memory. Pretty straightforward. :-)
Remember that just because you purchased you MacBook Pro in late 2008, that doesn’t necessarily mean it’s a Late 2008 MacBook Pro. This firmware update only allies to the 15″ Aluminum Unibody MacBook Pro, and the 13″ Aluminum Unibody MacBook, both released in late 2008. See above for instructions on determining whether or not you have the correct model.
Theoretically, the firmware allows the machine to address the memory properly, outside the OS, so you should be able to use it with Windows as well. That said, you we have not explicitly tested compatibility under Windows, so we can’t give a definite answer at this time.
However, the firmware update requires you to be booted to OS X, so if your machine is set up to run Windows only, this whole exercise becomes moot.
Hi Chris. thanks for quick answer. My MB boots ONLY on Windows 7 (64 bits). Therefore, it is not possible to update trhe firmware (or maybe there is another way than via OSX?).
In that respect, I assume I should upgrade to 6GB RAM MAX?
Best regards
That is correct… without OS X, you cannot upgrade the firmware, meaning 6GB is your maximum.
Fine! Then I will format my HDD -> install OSX -> update firmware -> delete OSX and install W7 again.
Means that I will then be able to get the 8GB in the MB?
Firmware update is not “encrypted” in the OS right?
Theoretically, it should. However, since we haven’t tested this in-house, we can’t say so for sure.
Do we have to change anything to make our system use the full 8 gbs, like switching to 64 bit?
No, simply updating to the latest version of the firmware allows the full 8GB of OWC memory to be addressed.
Hello OWC Grant and OWC Chris S.,
FYI, I have [x brand] 8 GB memory running Mac OS 10.5.5 and 10.5.8 in my MacBook Pro 2.6GHz Intel Core 2 Duo 17 NOV 2008 MacBookPro4,1. The memory is recognized running smoothly an faster than ever before for some time now, but as soon as I use Mac OS 10.6.8, 10.6.7, or 10.6.6 the os and apps bog down drastically. Even if I enable/disable secure virtual memory or enable/disable 64 bit OS extensions things bog down in any version of Mac OS Snow Leopard. Would you please test this 8 GB Ram system config in a Macbook Pro Early 2008 with Mac OS Leopard to verify this config is working. This way you can expand your sales to your customers that with the older Macbook Pros wanting 8 GB of memory.
We only sell and support OWC brand memory.
All of our memory meets or exceeds Apple’s specifications for memory and, on occasion, through our OWC MaxRAM Memory Certification Program we will support our memory in larger configurations than Apple does on certain machines. Said certification does not apply to other brands, nor do we test other brands of memory.
We have tested and re-tested our memory in the MacBook Pro 15″ & 17″ machines with model ID: MacBookPro4,1 (this includes models released both in early and late 2008) and have MaxRAM Certified them to use up to 6GB of OWC memory. Once the 6GB mark has been exceeded in actual memory usage (not just having it installed in the machine – but actually being addressed) the system slows down and/or loses stability. As such we do not support 8GB of memory in those machines.
Hi there,
Just wanted to double check that my Macbook can take 8GB? I am running Mac OS X version 10.7.4.
Could you also please send me a link to the exact ram that would be compatible?At the moment I am running 4GB 1333 MHz DDR3 but I have been told that I should be using 1066mhz instead?
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Serial Number (system): W89120BD7WV
Hardware UUID: CBDBE2BB-C1AF-591D-BE7A-D85C16BD677D
Sudden Motion Sensor:
State: Enabled
Many thanks!
“First, you want to make sure you have one of the affected models: …MacBook Pro 15″ 2.4GHz model w/ExpressCard Slot” – Yup, that matches.
“Next, check the Boot ROM Version in your System Profiler…MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03” – Yup, that matches.
You certainly can run 8GB of memory… http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
Great! Thanks for your help!
Hi!
I have a MacBook from Late ’08 and after reading this article I’m pretty sure that 8GB RAM will work on my MacBook.
But, last year, when OS X Lion came, I upgraded from OS X Leopard to OS X Snow Leopard and then to OS X Lion. And it worked great for about 1-3 months, it was just as fast as it was when I got it. But after that it got a bit slower, and its fastness reduced further and further. Right now it seems to have stopped reducing speed. Though now it is so slow that sometimes when I only use Safari and iTunes the little rainbow-coloured circle appears. So, in my opinion, it definitely needs a RAM-upgrade.
And with OS X Mountain Lion coming soon, my question to you is: should I upgrade my RAM before or after I get OS X Mountain Lion?
If needed, I have provided my specs:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
While Apple’s official minimum RAM requirement for OS X Lion is 2GB, industry experts agree 4GB of RAM is the minimum that should be installed for optimum performance of typical daily computer usage. I’d definitely suggest more RAM sooner rather than later.
Hi
I have late 2008 (alu body) MacBook:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
According to your articule I could upgrade my RAM memory to 8GB but I am not sure about bus speed compatibility. At the moment I have 2 x 1 GB DDR3 1067 MHz. Is it going to work with 2 x 4 GB DDR3 1066 Mhz Memory? How about 1333 MHz?
I will be very grateful for your reply.
Best Regards
The MacBook5,1 uses PC-8500 DDR3 1066MHz (aka 1067MHz depending on how the actual MHz is rounded for marketing) 204-pin SoDIMMs.
Hi thank you for a great article, I thought I understood, however can you please confirm my MB will support 8gb? on lion 10.7
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Right Model Identifier: MacBook5,1
Right Boot ROM Version: MB51.007D.B03
Yup, it’s 8GB compatible.
Hey OWC Michael,
for the Macbook Pro 4,1 with 8 gb ram that you tested, was there any issue with slow down once you reached 8gb of usage? I only ask to confirm because I read online from other people who have tried it with Lion, that they have still had a slow down after reaching past 6 gb of ram usage: essentially making the other 2 gb unusable. Did you guys install the OS fresh? Maybe there is a proper procedure for being able to use 8gb with the 4,1 that others overlooked?
It keeps saying error so I hope I have not posted this 10 times.
The MacBookPro4,1 model is OWC Certified for up to 6GB of memory – not 8GB. This article is written regarding the MacBookPro5,1 model.
I just upgraded my MBP 15 2.2ghz 3.1 with 2x4gb and it works great!
Memory Slots:
ECC: Disabled
BANK 0/DIMM0:
Size: 4 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xAD00000000000000
Part Number: 0x484D50333531533641465238432D53362020
Serial Number: 0x4214045A
BANK 1/DIMM1:
Size: 4 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xAD00000000000000
Part Number: 0x484D50333531533641465238432D53362020
Serial Number: 0x4234044F
I have MacBook Pro 15inch 2,4Ghz Ver. 3,1 do it going to support 8GB ram ?
OWC officially supports up to 6GB of memory in the MacBookPro3,1 models.
It works great with mine, look after STT brand. They are Apple compatible and not overpriced.
Rember Test Results
All tests passed!
Total built-in memory: 8 GB
This is the total amount of physical memory that the computer has installed. If this figure is not showing the correct amount of memory there may be a problem with one or more installed DIMMS.
Available memory: 5459 MB
Available memory is the amount of physical memory that is currently not in use by any other processes. All available memory will be used for testing when the “All” option is selected. To increase the amount of available memory, you can restart your computer before testing. If you are familiar with the command line (CLI), you can run memtest (the core of Rember) in single-user mode. See Rember help, or http://www.memtestosx.org for more information.
Requested amount: All MB
The total amount of memory requested for testing by the Rember application. Not all requested memory can be allocated for testing. See information on “Available memory” for more information.
Memory allocated for testing: 5459 MB
This is the total amount of memory that memtest was able to allocate for testing. See “Available memory” section for more information.
——-
Loops selected: 1
Total loops selected by user for testing. All loops should complete when testing is successful. Test failure when the “Continue on Error” preference is selected will cancel tests before this number of loops has been completed. Users can also cancel testing before this number is reached.
Loops completed: 1
Total loops completed by memtest. Note that the Rember is not always able to identify how many loops ran. If there are discrepancies between this and the loops selected, the log should be examined to determine exactly how many loops were performed.
——-
Total execution time: All tests passed! Execution time: 170746 seconds
This is the total amount of time that it took to execute the selected tests. Execution time may vary from system to system, and is provided as a guide for determining how long users can expect tests to run based on the amount of memory installed on the system.
Testing start time: 2012-07-01 10:12:13 +0000
Testing end time: 2012-07-03 09:38:30 +0000
Rember version: 0.3.7b Memtest version: 4.22
It was never an issue that the memory didn’t show up. The problem is that when over 6GB is actually addressed in those models, the system slowed to a crawl in real-world performance testing. As such, OWC officially supports up to 6GB of memory in the MacBookPro3,1 models.
Thanx Michael, it did not slow machine and did not speed it up at all (in my opinion). So your`s argument is at place, i switch back to 6gb. I tried run Logic, Garage band, iPhoto, Aperture & lightroom at same time and there is 4,12gb free memory?! Moore than i need. Some says: if 8gb ram installed only 7gb shows and uses, so i been some confused when mac recognized all 8gb.
Memory Slots:
ECC: Disabled
BANK 0/DIMM0:
Size: 4 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xAD00000000000000
Part Number: 0x484D50333531533641465238432D53362020
Serial Number: 0x4214045A
BANK 1/DIMM1:
Size: 2 GB
Type: DDR2 SDRAM
Speed: 667 MHz
Status: OK
Manufacturer: 0xCE00000000000000
Part Number: 0x4D342037305435363633515A332D43463720
Serial Number: 0x77DCAB98
I have a late 2008 15″ Macbook Pro….2.53 GH…..Boot Rom MBP51.007E.B06…..tried 8 gigs and the machine wouldn’t start, I’d get a blue screen and nothing would happen. Reinstalled the RAM sticks again, same results. Tried downloading the EFI 2.8 and it wouldn’t install, kept getting error that the EFI update is not supported on my machine…Any help? I really need more RAM…….Could it be bad sticks? Reinstalled the original 4 gigs and it works, just not as fast as I’d like…..Any ideas?
Thanks,
Amir
Sounds like you may be using either incompatible or faulty RAM in that machine.
I have a late 2008 MBP 15.4” with 2gb ddr3 1066 ram running on lion. I’ve read that it only recognizes 6gb so it was better to install 4gb to get the dual channel boost. But installing the full 8gb 2x4gb will still give me a better performance? No crashing or slowing down at all? After reading this im still a little skeptical on upgrading. Is my MBP upgradable?
Yes, that is the full topic of this article.
Hey Michael i really want to upgrade my macbook, it needs a boost, a real good one.
It’s a MacBook 13-inch, Aluminum, Late 2008
Mac OS X version 10.7.4
Processor 2GHz Intel core 2 Duo
Memory 2 GB 1067 MHz DDR3
Graphics NVIDIA GeForce 9400M 256 MB
Software Mac OS X Lion 10.7.4 (11E53)
MB51.007D.B03
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Am i eligible to upgrade to 8GB?
And if i am, can you send me a link or tell me what is the exact memory you recommend? Do youi ship internationally?
Your Apple MacBook “Unibody AL” – Late 2008 Model ID: MacBook5,1 with Boot ROM Version MB51.007D.B03 is OWC MaxRAM Certified for up to 8GB of memory. We do ship worldwide.
Couldn’t find my processor speed above. Can I upgrade to 8Gb?
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Sudden Motion Sensor:
State: Enabled
Thank you!
Yes.
Thanks, my system specs is,
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
SMC Version (system): 1.33f8
Serial Number (system): W88451TR1GN
Hardware UUID: 32B453B2-2E22-5E4C-A790-CC9FD59C226A
Sudden Motion Sensor:
State: Enabled
without updating my Boot ROM Version MBP51.007E.B05 to MBP51.007E.B06 should i go ahead and upgrade to 8Gig ram?
Yes, Boot ROM version MBP51.007E.B05 or later will accept 8GB on that machine.
please help! i have a mac book pro 5,1 late 2008,with mac os x lion 10.7.2 runing on it and wish to upgrade my ram to 8Gigs. my Boot ROM Version: MBP51.007E.B05
I tried updating with EFI firmware 2.8 but each time it keeps alerting me that the software is not supported by my system.i tried earlier versions and it displayed “this system does not need this update”. i dont know what next to do ,please help!
You have the firmware installed already – so no need to install it again.
“MacBook Pros with a Model ID of MacBookPro5,1 should have a Boot ROM Version of MBP51.007E.B05.”
MacBook
Model Identifier: MacBook7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB71.0039.B0E
Can i use 8GB ? when i downloaded the update you said, it won’t let me install telling me i don’t need that update.
The MacBook7,1 is a Mid-2010 model and not subject to this blog post.
The MacBook7,1 is OWC certified for up to 8GB of memory.
My Macbook Pro Specs are :
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2,4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1,07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.33f8
Serial Number (system): W89050TQ1GK
Hardware UUID: D4007A23-BD9C-55C4-B8D2-D2AE171119D5
Sudden Motion Sensor:
State: Enabled
Can it handle 8GB of Ram or will I have a problem?
Do you ship OWC Memories in Greece?
The MacBookPro5,1 is OWC certified for up to 8GB of memory. We do ship worldwide.
From what you say, I should be fine running 8Gs on my snow leopard software. Will it interfere in anyway, though, with my VMWare Windows 7? The only reason I want to upgrade my RAM is that VMWare slows everything down.
Should have no issues whatsoever using VMWare with the RAM upgrade.
Hi,
I have got a Macbook 5,2 intel core 2 duo and 2.0 ghz which has a Boot Rom Version: MB52.0088.B05 and had 4 GB memory on it. Can i upgrade this to 8 GB? If yes, what speed can u recommend. Many thanks. By the way Macbook is not the aluminum body but the white body.
The MacBook5,2 is OWC certified for up to 6GB of memory.
Hi Michael,
i am sorry, but even after reading all of this, i am still confused about if i will be able to update my MBPro to 8 GB, or if i have to do it to 6 only.
My model is a 2.4 GHz Intel Core 2 Duo, running with 2 GB 667 MHz DDR2 SDRAM on Lion 10.7.3. It’s an early 2008, with this Hardware overview:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
From the graphic you guys posted, it seems that i cannot. But I still have this doubt because of your conversation with user Nick Lowe, about Lion now using the 64-bit kernel. Does this means that i can update to 8gb, and not need to go to the 6GB OWC tested you guys offer?
I’m updating my firmware to 1.27f3 (SMC 1.4) right now, and i’ld like to be able to purchase from you guys the biggest amount of memory i can. Please explain me if i can purchase two 4gb modules (and by the way, which ones – if you could post a link to your store i’ld be grateful). And tell me, if i can do it, how can i set Lion to run on 64 bits (because i understand that it needs to be running that way in order for the 8GB to work properly.
Thank you very much,
btw you guys at OWC are great, thanks for all the info and effort
regards to everyone
Miguel.
There were specific circumstances surrounding that conversation with Nick where some preliminary testing showed no apparent issues with upgrading that machine to 8GB while running 64-bit programs. Lion by default boots to the 64bit kernel – so the issue isn’t the operating system. 32-bit programs operating on the 32-bit kernel will potentially cause incompatibility issues with the machine – random freezing, system slowdown, and crashes. If your particular workflow never takes you out of the 64-bit kernel, then 8GB could possibly work for you. But, in our MaxRAM testing we list the highest amount of memory that we have found to work consistently in all available computing environments.
Bottom line is we sell and support up to 6GB of memory on those models.
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 8 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.16f11
Serial Number (system): W88091DQX91
Hardware UUID: 00000000-0000-1000-8000-001EC20FB8E5
Sudden Motion Sensor:
State: Enabled
SODIMM DDR2-800MHz 4GB for Apple MacBook/PRO, STT T800SB4GAP
Hi, I have the Late 15″ 2008 MacbookPro 5,1 2.4GHz with MBP51.007E.B06. Will this work with Lion 10.7.3?
Yes
i’ve been searching for RAM,
i have a 2008 black macbook 4,1 2.4ghz
i’m running lion 10.7.3 and i was about to purchase 6gig’s of RAM. just want to know if you have tested 8gb on my system?
also if it’s possible, where could i buy 2x4GB of compatible ram without having to purchase it separately?
thank you for your help
The MacBook4,1 is OWC certified for up to 6GB of memory.
Can I upgrade to 8GB since I have lion.
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.5 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.27f3
Processor 2.5 GHz Intel Core 2 Duo
Memory 4 GB 667 MHz DDR2 SDRAM
Graphics NVIDIA GeForce 8600M GT 512 MB
Software Mac OS X Lion 10.7.3 (11D50)
The Early 2008 MacBook Pro (Model ID: MacBookPro4,1) can accept up to 6GB of memory.
I just performed this upgrade with 2x4GB Crucial DDR3 1333MHz And it’s great! A lot zippier noticeable off the bat, and according to iStat Pro around 5-10 degrees cooler all around so far!
So I have confirmed that I have
Boot ROM Version: MBP51.007E.B06
Software Update always says that I need to install MacBook Pro EFI Firmware Update 1.8 but it never works
I’m wondering if I can install 8GB ram given the above two things.
My Mac is
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.93 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B06
SMC Version (system): 1.41f2
Serial Number (system): W891515F71C
Hardware UUID: 7664C401-E796-54C2-A7F2-7E437C8CFE41
Sudden Motion Sensor:
State: Enabled
Thanks!!!!!!!!!
Yes, you must’ve missed the update in the post:
**IMPORTANT NOTE: EFI Firmware Update 2.8 was released on February 28, 2012 for the Later 2008 MacBook Pro. If you have installed that update, your Boot ROM version will be MBP51.007E.B06. If you have this update installed, you’re already able to install the 8GB without any problems and don’t need to perform further updates to install more RAM.
Hi there. I’m using Macbook Late 2008 with Alu body. Here is my detail,
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
and I’m running on Lion. Thats mean I can install 8GB of RAM right?
Yes, that was the whole point of this blog post.
The memory can be found here.
I have a question. Please help me. Is there any way to change frequency of Ram on macbook? Maybe some app or other way. Urgent!!!!!!
No, the frequency of the RAM is just one of the specifications of determining the compatibility of the memory with your MacBook. You can use the My OWC page to select the correct memory for your machine.
It works great. I put kingston ddr 3 2x 4gb 1333 Mhz. Only the temperature of unibody had raised over 10 degrees. My mac has became much louder for about 10 decibels and fans are crazy. what to do?
Can’t really speak to other brand’s products. OWC MaxRAM Certification applies to OWC brand memory only.
I just upgraded my Macbook Pro 2.4GHz (late 2008) from 2GB to 8GB. Wow, what a difference. Everything is so much faster to load (from Safari to Photoshop to Final Cut Pro). I’ve monitored my temps as well, the temp hasn’t raised up at all, in fact, it’s a couple of degrees cooler according to iStat Pro.
Best $50 I’ve spent on my Mac. If you’ve considered a Ram upgrade on your Macbook Pro, do it, you won’t regret it at all.
P.S. No more spinning beachball too :)
Quick note to say that with 8GB installed (on the correct late-2008 MacBook Pro), my computer is running 10-20 degrees hotter than with 4GB installed. I monitor the temperature with smcFanControl. My OS is Lion 10.7.3, with the February 2012 firmware update. I may go back to 4GB.
Can i also upgrade to 8GB?
Macbook Pro early 2008
Macbook Pro 3.1 /2.4GHZ
Boot Rom: MBP31.0070.807
Thanks for the info.
No, the MacBook Pro 2.4GHZ (model ID MacBookPro3,1) is OWC Certified for up to 6GB of memory.
I have a late 08 aluminum macbook, and I updated as specified. Howevwe, in system info under memory, it still says max is 4 GB. Is it supposed to still say this or was it supposed to change?? Just curious before I go buying the 8 GB of RAM. Thanks in advance for any help!!
That shows the amount of memory you already have installed and should not change with the update.
Ok… so i installed the 8gb… works great… BUT after using the computer for say 10 min… the computer starts running really slowly. no matter what i’m runnning. it slows to a halt… un usable. the only way to fix it is to force shut down and then start over… i get 10 min then nothing… so.. what is this telling me about he 8gb? memory bad? really cant handle the 8gb?
the 4gb works fine, but would really like 8gb so i can run parallels more smoothly..
thnaks in advance!
Several variables could be causing that behavior. Our Technical Support Department is available to assist in troubleshooting at 1(800)275-4576, via live chat, or email.
After reading this article and verifying my Mac was an affected one, I dropped 8 gigs in…. So far it’s working perfectly :-)
I have a MacBook (13-inch, Aluminum, Late 2008) w/ Model Identifier: MacBook5,1 and Boot ROM Version: MB51.007D.B03, so according to your article it’s compatible with this update. But what is the EFI update number that I should be looking for? On the “EFI and SMC firmware updates for Intel-based Macs” page (http://support.apple.com/kb/HT1237), the latest EFI update I see for my machine is 1.3 and was posted on Dec. 10, 2008. Is that the correct one? It looks like the EFI Firmware Update 1.8 you talk about testing in late 2009 is for MacBook Pros, only. What should I be looking at?
MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03 (EFI 1.3)
macbook pro 5,1 (late 2008) 15 inch.
EFI 2.8
8 GB of OWC supplied RAM
480GB OCZ solid state drive Agility 3 fw 2.15 (w/ 3Gb link speed patch) & Trim Enabler 2.1
(Super Duper cloned it from the rotating rust)
Snow Leopard 10.6.8 with ALL patches
VMWare Fusion 4.1.1 (VMs – Windows 2003 64 bit & Windows 7 64 bit – both with SSD Tweaker)
Spotlight ON (App Store broken w/o it)
All ad0be flash/air/etc REMOVED from OS X
Safari 5.1.2
——————
Everything is perfect, speed is blazing, machine is cool and quite, couldn’t ask for more
Startup Mode Selector
says EVERYTHING is 64-bit.
2.4 GHz Core 2 Duo
I read but was a little skeptical of my computer. These are my specs. I’m not sure if mine will be compatible or not. Will it?
Model Identifier: MacBookPro4,1
Boot ROM Version: MBP41.00C1.B03
Your Apple MacBook Pro 15″ or 17″ – Early 2008 (Model ID: MacBookPro4,1) is OWC certified for up to 6.0GB of memory.
ok just to let you know. :-]
Tested this with the latest EFI Firmware Update 2.8 (MBP51.007E.B06) released 28 feb 2012.
Inserted two 4GB icidu DDR3 1066 MHz modules
Then upgraded the HD from 500GB to 1TB (new and old are Westerndigital WD Scorpio Blue)
Now installing Lion from a burned dvd created from my Lion instaler package, nice and clean.
Running smoothly!
wow that EFI Firmware Update 2.8 from just days ago(February 28, 2012) really did the trick! Super nice running with 8GB and 1TB drive :-) Lets fill ‘m up now!
Thanx for the great article and help!
There is a EFI 2.8 firmware update for Late 2008 Macbook pros. Just released Feb 28, 2012. Can OWC do a quick test to see if it breaks the 8gig ram support?
http://support.apple.com/kb/DL1502
Thanks
Ok, i just saw a post you guys tested it! Thanks.
Are you planning to test the new version of the Boot ROM posted Feb 28, 2012 (MBP51.007E.B06 (EFI 2.8))? My system in particular is a 2.53 GHz MBP (late 2008).
We are testing the new EFI updater and will post results when completed.
EFI firmware update 2.8 did not change anything with the memory – 8GB is still A-OK.
I have a late 2008 unibody Macbook (model ID: Macbook 5,1), and I want to upgrade the memory. I have a Boot ROM version of MB51.007D.B03. This article suggests that my computer can handle up to 8 gb. Why then does the Apple website still say it can only handle 4 gb? I also spoke to AppleCare about this and they confirmed that my computer should only be able to handle 4 gb. Why would they say this if (as you suggest) it is not correct?
I want to use the maximum amount of memory my computer can handle, but I’m getting mixed messages on what that amount is. I don’t want to order 8 gb and then screw up my computer. Help?
We support the additional memory amount through our OWC MaxRAM Memory Certification Program.
The OWC ‘MaxRAM’ Certification Program determines the maximum amount of memory that can be installed in a Mac as validated by a series of comprehensive, in-house laboratory tests. While OWC “MaxRAM” configurations exceed Apple’s officially supported maximums, all OWC brand memory upgrades are assured to perform flawlessly and are covered by a Lifetime Advance Replacement Warranty and Money Back Guarantee.
Wonderful, thank you for the quick response! I will go with the 8 gb then. Thanks again.
Hi,
I use a MBP 13″ mid 2010 (7.1). Apple say 8GB maximum. Have you tested 16GB for this book?
The same modules for the 2011 MBP. Only speed is lower. 1066MHz to 1333MHz.
Check it, please.
Thanks
Your Apple MacBook Pro 13″ – Mid 2010 (Model ID: MacBookPro7,1) is OWC Certified for up to 8.0GB of memory.
I know, but have you try it with two 8GB modules in these MBP models?
May be with a little bit luck … ;-)
We have tried it – 6GB is the maximum as I stated in my last response.
Could you test a MBP3,1 or a MBP4,1 with 8GB under Lion (10.7)?
The issue certainly used to be, and may well still be, that the final 1 GB was not addressable and access to it would just cause swapping and heavy performance degradation.
With Lion, they finally use the 64-bit kernel for those machines, with now leopard the 32-bit kernel was always used. It would be interesting to see if it now works correctly. I certainly have not seen any information about it being tried…
Regards,
Nick
We do not officially support 8GB of memory in a MacBookPro3,1 or 4,1, but in our testing, we have successfully seen and addressed 8GB in a MacBookPro 4,1 as long as we were running 10.6.8 or better in 64-bit mode. As Lion default boots to a 64-bit kernel, the full 8GB is able to be addressed without the memory paging and performance degradation that is experienced in 32-bit mode.
Please note that if you are running Mac OS X 10.6.8 in 32-bit you won’t be able to address all 8GB. We were not able to get Mac OS X 10.6.3 to install with 8GB of RAM. We had to remove one of the 4GB modules. After updating to 10.6.8, and telling the Mac to run in 64-bit mode we were able to use all 8GB of RAM.
I have successfully upgraded my MacBook Pro 3.1 to 4gb and, recently, to 6gb of OWC RAM. As I’m running Lion, I wondered if I could upgrade to 8gb. What if I order a 4gb module and my machine fails to work properly?
The Late 2007 MacBook Pro models (Model ID: MacBookPro3,1) are OWC MaxRAM certified for up to 6GB of memory. You are already maxed. 8GB is not compatible.
Hi do you have a uk reseller for the correct ram for the MacBook intel core 2 duo 2ghz unibody.
I have 2gb ram and want to upgrade to 8gb
Thanks
We do ship worldwide from our Woodstock, IL USA location.
Thanks a lot for this great post. Just wanted to confirm that after reading this post this morning, I upgraded to 8GB RAM in my Late 2008 Macbook aluminium and it is working smooth.
OWC Michel,
I bought 8GB (2 x 4GB) of 1333 RAM and installed in my mid-2010 white (poly) MacBook. Replacing the two 1GB sticks it came with. It won’t boot. Simply beeps (reporting a RAM error). I’ve tried every combination of sticks and slots (using original 1GB, and new 4GB, in both slots). Every combo works and boots fine except the two 4GB sticks together.
Specs:
MacBook 7,1
Intel Core 2 Duo
2.4 GHz
Bus speed: 1.07 GHz
Boot ROM version: MB71.0039.B0B
OSX 10.6.8 (Leopard…NOT Snow Leopard)
Parallels 5.0.9344 (Windows 7 installed through Parallels)
Questions…
Any idea why my new RAM won’t work?
Do I need to switch to 64-bit? If so, will this have any impact on performance/software compatability/stability?
Will I have issues when I upgrade to Lion?
Any advice would be appreciated.
Nick
That isn’t the correct memory for your machine.
The MacBook – Mid 2010 Model ID: MacBook7,1 is OWC MaxRAM Certified for up to 8GB of 1066MHz DDR3 memory (PC2-8500).
“OSX 10.6.8 (Leopard…NOT Snow Leopard)”
10.5 is Leopard, and 10.6 is Snow Leopard. So which is it?
I can confirm that my late-2008 MacBook Pro can also upgrade now that it has the EFI update from Feb 2012. Also worth noting is my Mac accepts the faster speed of the RAM I purchased. I went from 4GB 1066 to 8GB 1333.
can anyone else confirm this? thanks
Thank you, Michael for confirming this. Now Is there a difference between 8.0GB DDR3 PC8500 1066MHz and 8.0GB DDR3 PC3-8500 1066MHz? I installed PC8500 and still only have 4GB Ram.
8.0GB DDR3 PC8500 1066MHz and 8.0GB DDR3 PC3-8500 1066MHz are two different notations for the same memory.
I installed OWC8566DDR3S8GP according to your instruction video, but still show only 4G of memory. Any other suggestions?
It is possible that the memory isn’t fully seated in the slot. Try re-seating the memory and starting the machine again. If that doesn’t work, install one module at a time in each slot and you can determine if it is a faulty memory module or a faulty memory slot – if one of the modules itself is the culprit, we do offer a lifetime advance replacement warranty on RAM; if it is the slot itself, a trip to the Apple Store Genius Bar may be in order to repair or replace it.
For further assistance on troubleshooting, please feel free to contact our Technical Support team at 1(800)275-4576, via live chat, or e-mail.
Can a MacBook Pro 5.5 (13″ mid 2009) 2.26GHz, upgrade to 8GB Ram?
The MacBookPro5,5 models are OWC Certified for up to 8.0GB of RAM.
For the Macbook Unibody does the EFI Firmware Update 1.3 from Boot ROM Version MB51.007D.B03 to Version MB51.0073.B06 affect the 8GB memory option (i.e. will 8GB memory still be stable)?
EFI Firmware Update 1.4 is newer than the 1.3 update for the MacBook5,1 model.
Hi Michael,
I have a Macbook 5.1 aluminum late 2008, I have tried installing a 2x2gb (4gb) of RAM 1333mhz that I got from my friend’s MBP. It’s working fine so far, but I just want to ask if it will cause any trouble in the future because the default bus speed for this model as far as I know is 1066mhz?
I hope it’s ok to use the memory I have installed right now with no issues.
Thanks in advance.
We do not list that memory as compatible. Use at your own risk.
Hi there,
I’ve a MacBook 5,1 running 10.6.8 with the Boot ROM Version of MB51.007D.B03. Downloaded and tried installing that EFI update, but it tells me I don’t need this update. Any suggestions on how to get around this?
Cheers,
T
No need to get around it.
MacBooks with a Model ID of MacBook5,1 should have a Boot ROM version of MB51.007D.B03
Hi Michael
I have an old mac.
Processor 2.16 GHz Intel Core 2 Duo
Memory 4 GB 667 MHz DDR2 SDRAM
Graphics ATI Radeon X1600 128 MB
Serial Number W87075CJW0G
Software Mac OS X Lion 10.7.2 (11C74)
I really want to put 2 x 4gb cards in it. Will the computer accept the 8gb or is the machine to old.
Hope you can help.
Thanks
Neil
That is a MacBookPro2,2 and not subject to this article.
Apologies if this has been answered in a comment already but I’m still a little unclear. I have a MacBookPro 5,1 with the correct firmware update as stated in the article and OS X 10.7.2. I have purchased (but not yet installed) an 8GB kit. Will my computer actually address all 8 GB or will it just see the 8 GB and actually address only 6 GB?
It will address 8GB
If I have Lion installed, do I need to install the EFI you talked about?
Most likely, you’ve already installed it prior to your upgrade to Lion – but you should still check.
So to be clear, I have to update my os x 10.5.8 to 10.6.6 for my macbook to recognize 8gb.
I went online and ordered the 8gb memory kit. My macbook5,1 fits the description. Once I can get the 10.6.6 on there, I need to do the firmware update on link provided, then installl the 8gb upgrade from the 2gb I have now and the system should work correct?
2. I plan on installing windows 7 in bootcamp and upgrading to lion. will be 8gb still be recognized and stable?
That is correct on all points.
Sorry if you answered this question. I have a Macbook7,1 running OSX 10.6.8 and I have a different boot ROM, Version: MB71.0039.B0B. Would this model support 8GB RAM? Would I have to downgrade the boot ROM to make it compatible? Thanks
This article ONLY applies to MacBook5,1 and MacBookPro5,1. Your MacBook7,1 supports up to 8GB of memory.
I’d like to know if the Macbook Pro 4,1 (early 2008) have been tested with 8gb ram recently. There is evidence of 8gb @ 667 Mhz working with Snow Leopard (10.6.7+):
http://tinyurl.com/749h8l2
http://tinyurl.com/7jbwkrg
Post References:
http://tinyurl.com/7gh8oj9
http://tinyurl.com/84ugqoo
Please confirm! :) thanks for your time, I appreciate it.
Sorry for the delay in commenting, but CES left us a little short-handed back home last week. ;-)
We’ve done some preliminary testing and in 32-bit mode, all is still the same. While the memory can be installed, only up to 6GB is actually addressed. After 6GB is used, the hard drive is then accessed as virtual memory instead of utilizing the last 2GB of actual RAM.
However, we tried this under Lion with a 64-bit boot and at first look, it seems like that additional memory may be addressable. We have lots more testing to run for the stability of the RAM before we can say whether we will support the additional memory or not. We should know more in the next week or two.
I am also interested whether or not the Macbook Pro 4,1 will support 8GB of memory. People have said it works, but it would be nice to get a real confirmation.
The MacbookPro4,1 models are OWC MaxRAM Certified to accept up to 6GB of memory.
im probably sounding redundant, i have a 17in 2.4 ghz intel core duo Macbook pro – MBP31.0070.B07, macbook pro 3,1
i read your specs seeing if i am required to get this update.
Ive done some research and it says my max memory is a 4gb kit. I use my laptop for video djin and wanted to see if my laptop can run 8gb or memory. thanks for you time
Mo,
Your MacBook Pro has been OWC MAXRam Certified for up to 6.0GB of memory.
thank you appreciate your quck response
Hello OWC Michael,
I want to refer to a discussion on Apple Support site:
https://discussions.apple.com/message/16659157#16659157
I am curious why 8 GB would work in a 2007 MBP but not a 2008…?
Also, how can one test to see if RAM is functioning properly in their machine, aside from it just simply working…?
The results from this test are more likely to be a fluke than anything – all our in-house testing plus, every other source I’ve checked all point to 6.0GB being the maximum for both the 2007 and the 2008.
Reading the discussion, it seems that RAM that was outside Apple’s specifications was used. I don’t recommend it; it’s equally as likely that setup could backfire rather nastily. Plus, just because it sees 8GB doesn’t necessarily mean it addresses all eight. My guess is that it’ll still use 6.0GB.
Bottom line – don’t do it. Waste of time & money, and risks damaging your machine.
As for testing RAM – you can’t go wrong with any of the incarnations of the memtest command line utility. The easiest way is with Rember, which is a GUI wrapper for the application. For 98% of users, this’ll do just fine in checking out your memory. Those of us who are a little more hardcore about it can download the command line utility and run it from Single User Mode, to make sure it addresses the maximum amount of memory.
I’ll warn you, though – that test is pretty lengthy and the more RAM you have, the longer it takes…
I just ordered 8.0GB OWC Memory Upgrade 2 x 4.0GB PC8500 DDR3 1066MHz 204 Pin
For my MBP my RAM is 2 GB 1067 MHz DDR3.. so is the new RAM I bought going to be slower?
What’s the difference between the 1066 MHz and my 1067 MHz??
1066MHz and 1067MHz DDR3 modules are one and the same. Technically speaking, the module speed is 1066.66666666666… so it’s just a matter of rounding versus truncating the number.
Hi,
I now know that my late 2008 macbook pro 15″ can now support 8 gb but can it support the 1333Mhz type?
Thanks.
No.
Is it possible to run 2x 8GB 1333 on Macbook 5.1? Has anybody tried this yet?
MacBook5,1 can accept up to 8GB of total memory as 2x4GB modules.
Hi, Michael!
I want to upgrade to 8gb my macbook pro mb133. Is it possible?
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 3 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.27f3
Serial Number (system): W88320PRYJX
Hardware UUID: A942557C-72B1-58EF-8E3C-1349DBB771D7
Sudden Motion Sensor:
State: Enabled
The MacBookPro4,1 is OWC certified for up to 6GB of memory.
I have two Macbook Pro 5,1( 15 inch late 2008 installed with 10.7.2) and one MacBook Pro 5,3 and a Macbook Pro6,2 that I would like to install with 8GB of memory. I want to make sure they can handle this, I was confused thinking only the model 5,1 would allow this. The 5,1 has the correct Boot ROM yet the 5,3 has MBP53.00AC.B03 – would we be safe to upgrade our machines? thanks!!!
Only the MacBookPro5,1 model needs the firmware update. Your other two machines are both already OWC MaxRAM certified to use 8GB of memory – no need to check any updates before installing.
Hi everyone,
I have quite same question like the others. I have MacBook 6.1 (late 2009). So can I put 8Gb RAM without that my computer doesn’t crash ever??? And is this sure that I will not have problems later?
I have now 2Gb of RAM and OS: Snow Leopard.
Dini, this article does not apply to your machine. The Apple MacBook Late 2009 model (Model ID: MacBook6,1) is OWC certified for up to 8GB of memory.
I have a late 2008 MBP 5.1 and i downloaded the EFI firmware update, and went to install but it gave me the “Alert: This computer does not need this update.” Does this mean I already have it installed? Or does the 8GB of RAM need to be present in the machine before running this update and then updating to Snow leopard? I’m running on Leopard right now..
System specs:
Hardware Overview:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
SMC Version (system): 1.33f8
Serial Number (system): W884951J1G0
Hardware UUID: 220D6A81-07B9-529F-9059-83044CB43AEF
Sudden Motion Sensor:
State: Enabled
Thanks!
Boot ROM Version: MBP51.007E.B05 – You already have the update installed. Good to go!
Do I have to be running 10.6.6 specifically or can I use a newer version? If I can run a newer version do I have to DL a specific firmware to access the 8GB? Is there any noticeable performance increases on 8GB? Thanks
You need 10.6.6 or later. Yes, the additional memory makes a difference as our benchmark testing shows.
My MPB runs slow when I have 8GB but is fine running 6GB. Is there a firmware update that will fix this issue?
Model Name: MacBook Pro
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
The MacBookPro3,1 is OWC MaxRAM Certified for up to 6GB of memory. It does not support 8GB.
Can I install 1 8gb ram instead of 2*(4gb)?
We don’t offer a single 8GB RAM module for the Late 2008 MacBooks.
When my MBP was able to go from 4gb to 6gb I purchased a single 4GB DDR3 1067 MHz stick. Now that it can go to 8gb I want to replace the remaining 2gb module but I’m not seeing any 1067’s, only 1066’s.
– Do you still offer a 1067?
– Will a new 1066 work with my existing 1067?
– Do I have to buy a whole new 8gb kit?
Thanks.
We’ve only ever sold and tested with PC8500 DDR3 1066MHz modules.
Hi, I installed PNY 8GB DDR3 PC3-8500 1066MHZ memory on my late 2008 aluminum macbook. On lion it seems that it isn’t using more than 2gb of memory, and it works fine. But when I use Windows 7 with Boot Camp, I got a blue screen with memory management error. Here are my specs:
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.40f2
Serial Number (system): W8917BB08QR
Hardware UUID: 0F1F00E9-C5BC-591E-A116-BDA011B5D3D7
Sudden Motion Sensor:
State: Enabled
I’m sorry, but we only sell and support OWC Brand memory.
bonjour,
I’m not much of a computer guy, but I am slowly learning by reading forums like these.
I’m want to upgrade to 8gb RAM to my Macbook, but I’m not sure if I can.
I recently upgraded to OS X Lion 10.7.2, but I am running on 2 gb of RAM, or at least I think so..
I went to the apple website to download the firewire upgrade, but it said I don’t need the update.
if i buy 8gb of RAM, will my computer be able to use it??
i’m not sure if I’m speaking in correct terms, so here are my specs.
OS X Lion 10.7.2
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
You do have the correct system specs and firmware to run 8GB of memory in your computer.
Thanks so much!!!!
Thanks for the post and answering some questions but I just wanted to confirm if my MacBook would support 8GB of RAM. Also I would like to know if there is no problem running Lion 10.7.2.
Here are the details:
Nombre del modelo: MacBook
Identificador del modelo: MacBook5,1
Nombre del procesador: Intel Core 2 Duo
Velocidad del procesador: 2 GHz
Cantidad de procesadores: 1
Cantidad total de núcleos: 2
Caché de nivel 2: 3 MB
Memoria: 2 GB
Velocidad del bus: 1.07 GHz
Versión de la ROM de arranque: MB51.007D.B03
Thanks again!
Sergio, your specs look all good to go. Upgrade with confidence!
Hi, I was wondering if the programs can actually fully utilize these 8 gigs
Yes, it depends on the program itself as to whether there is a maximum amount of memory that the it will address (For example Adobe’s CS4 can use a maximum of 2GB of RAM while CS5 itself can use much more). But where the real benefit comes into play is when running multiple programs at once, the programs don’t have to share memory allocation – which often results in beachballs and system slowdowns.
Hello. My computer matches all of the requirements in the flow chart (nice by the way). I am not sure where to buy the memory. Please Help.
Thanks.
By the way, Here are my specs:
OSX 10.6.8
2 GHz Intel Core 2 Duo
Model MacBook5,1
1 Processor
2 Cores
3 MB of L2 Cache
2GB of Memory (currently)
Bus Speed of 1.07 GHz
Boot Rom: MB51.007D.BO3
Please help, Mark.
Hi Mark….with a model ID of 5,1…this is the page you should review:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
also make sure to review this info on that page:
*NOTE: these models require the most current EFI version as well as Mac OS X v10.6.6.
And click on the link shown
So I’d have to downgrade to 10.6.6 before doing this? BTW, I have the right EFI Firmware.
THANKS SO MUCH.
No, you need OS X 10.6.6 or later and the correct EFI Firmware update in order to address the full 8GB on these machines.
Thanks
Hello,
There are too many options for me! haha I’m not sure which company/model to go for. My system specs seem ok for 8gb though; Any suggestions?
13-inch, Aluminum, Late 2008
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
Hello Karolis!
with a MacBook model ID of 5,1…this is the page you should review:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
also make sure to review this info on that page:
*NOTE: these models require the most current EFI version as well as Mac OS X v10.6.6.
And click on the link shown
our mantra here has always been More Memory = Faster Mac
So at current $49 for the 8GB kit, only makes sense to do the max RAM install then :-)
Hi,
I have a MacBook with snow leopard installed:
Model Name: MacBook
Model Identifier: MacBook2,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.16 GHz
This should work?
Thank you!
d.
You can Install up to 4.0GB total memory MacBook2,1 models, however the machine addresses up to 3.0GB. Although limited to physically utilizing a maximum of 3GB, there is a performance benefit due to 128 Bit addressing when a 4GB (2GB x 2 Matched set) is installed.
Hi here are my specs, what would I need to do to run 8GB (Or even 6GB, provided it’s stable) on my system? Thanks!
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MB41.00C1.B00
SMC Version (system): 1.31f1
Serial Number (system): WQ8090ST0P1
Hardware UUID: 3771ED99-66E9-5C3D-BA86-71382CC41798
Sudden Motion Sensor:
State: Enabled
Your MacBook4,1 is OWC MaxRAM Certified to use up to 6.0GB of memory.
Howdy,
I just bought 2x 4GB DDR3 1333 RAM and they are crashing my MB, which is running Mac OS 10.6.8:
13-inch, Aluminum, Late 2008
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Should I try DDR3 1067 instead of DDR3 1333? Do I need to downgrade to 10.6.6?
What do I need to do?
Thanks in advance.
That is not the correct memory for your MacBook5,1 model. The memory you should use is our 8.0GB(4.0GB+4.0GB Kit) PC8500 DDR3 1066MHz SO-DIMM Memory Upgrade Kit.
Hello there. I’m a little bit confused. my actual firmware is MBP51.007E.B05. I think I might have installed the upgrade pretty soon as it first came out. it says here in the article, that this is the firmware version needed to run stable with 8GB. BUT, the article also mentions something about a SECOND, UPDATED UPGRADE.
now, when I follow your link to the Apple support website (just being curious) it says there that the mac will be updated to MBP51.007E.005. The last three digits differ from my version. is this the newer version you mention in the article? If so, how can I then manually install it? I downloaded it already and tried to install it, the problem is Installer won’t work, as it reports the mac is already upgraded and self-quits..
Thank u very much for your support. really need some help here.
There was an update that changed it to MBP51.007E.005 – this one actually updates it to MBP51.007E.B05, despite the notation on Apple’s page.
If you have MBP51.007E.B05, that’s the version you’ll need for the 8GB.
Thx :)
Im running Mac OS X 10.7.2.. After upgrading to 8GB ram.. the system is highly unstable.. Kernal Panic all the time.. i realize the when the Mac takes more then 6GB ram problem starts.. unresponsive, unable to wake up from sleep etc.. and eventually KP and ask to reboot… Even after updating all the required updates.
Wayne, please call our Tech Support line to help with this: 800.275.4576
Hi
I have the late 2008 MacBook unibody. Since I
did the lion upgrade I’m getting a black screen
when ever its goes to screen saver mode and I have to
power off to get it running again
Is there a fix for this
Regards
Paul
Paul, I would contact our Tech Support line to troubleshoot this issue: 800.275.4576
Well i Already buy my 8gb memory for my late 2008 macbook pro 15inch,when i install the 8gb memory this information will apear in system Information?
Yes. About this Mac should report the full 8GB as will system profiler memory info assuming correct 8GB PC8500 4GBx2 set present.
Hi,
I didn’t even realise that my max was officially 4GB and upgraded anyway but I do have a question.
My spec is:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
So from the article I think I am good but memtest confuses me with this report:
Mac OS X 10.7.2 (11C74) running in multiuser mode
Memory Page Size: 4096
System has 2 Intel core(s) with SSE
Requested memory: 5508MB (5776060416 bytes)
Available memory: 5508MB (5776060416 bytes)
Allocated memory: 5508MB (5776060416 bytes) at local address 0x0000000101000000
why is this telling me I only have 5GB available?
Thank you for any advice you can offer.
Ian
Memtest is recommended to run in single user mode, which can partially explain the weird reporting. We would actually recommend using Rember (http://kelleycomputing.net/rember/).
Running Rember while you have Activity Monitor open will give a more accurate picture of the RAM utilization. You can find Activity Monitor by navigating to the Applications folder > Utilities folder > Activity Monitor.
Is there a flaw in your flow chart? Shouldn’t it read “YES” instead of “NO” to the right of “Does the boot ROM version match the one listed in the article”?
You’re right; we’ve made that correction in the flowchart. Good catch!
I’m puzzled.
I have a MacBook white with a 2Ghz cpu, but its model identifier is MacBook5,2 instead of MacBook5,1 as reported here.
The boot rom version is also different: MB52.0088.B05, so according to what you said it doesn’t need to be updated, does it?
That said, could you confirm I can install either 6 or 8 GB of ram here, with no bizarre side-effects?
This update is just for the Late-2008 models ONLY – if your machine’s model ID is anything OTHER than MacBookPro5,1 or MacBook5,1 then this does not apply to you.
As for the Boot ROM version… the update changes it to the ones listed in the article. Older versions have different numbers. If it doesn’t have the right number, it needs updating.
However, it should be noted that in your case the Boot ROM revision is moot, as it is not the right model MacBook.
Each model MacBook and MacBook Pro will have its own series of firmware updates and corresponding Boot ROM revisions.
Neither OWC reps have answered the pertinent question: Will any pair of 4GB (total of *8* GB) DDR 800MHz upgrades that OWC sells work in a MacBook5,2? You aren’t selling an 8GB configuration, but a number of individuals online have confirmed they have working devices (albeit with more fan time and moderately compromised battery life).
We only support up to 6GB of memory because if 8GB is installed and addressed, we found that the whole system performance actually slowed down. Paging to virtual memory utilizing the hard drive dramatically increases after 6GB of usage.
I’d suspect those reports of fan usage increase and reduced battery time would have more to do with the hard drive being constantly accessed as a source of virtual memory, getting much more read/write usage than it usually sees, and thus heating up – in turn, causing the fans to spin to keep the system cool. More battery power would obviously then be used to keep running the two additional components (fan and HDD) that without the additional load would be at rest more often.
Hi there!
I have a late 2008 MBP 15″ and according to the info here I do have the needed firmware, just that I have leopard 10.5.8… so if I upgrade my OSX to snow leopard (10.6.6 or higher) will I loose this firmware or will I keep it??
Thanks!
Firmware does not get changed with the software update, rather it’s part of the operating code that controls the hardware independently of the OS. After you install Snow Leopard (or even Lion) the firmware revision will remain the same.
Just so I am clear, I want to make sure the 8GB will work with my macbook (late 2008) as well:
odel Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
Model ID: MacBook5,1 – Check.
Boot ROM Version: MB51.007D.B03 – Check
Your MacBook is the same model that’s listed above and has the proper Firmware; you can use 8GB
Hi,
I have a 13 inch MacBook late 2008 and want to install 8GB, but the Mac only accepts 4GB. I use Snow Leopard 10.6.8 and EFI Firmware 1.4 (but with Boot-ROM-Version MB51.007D.B03). I read that I need Boot-ROM-Version MB51.007D.003). But I can’t install EFI 1.4 again.
What can I do?
Even without the firmware update, MacBooks with the Model ID MacBook5,1 should be able to address 6GB (a 2GB module plus a 4GB module) without any slowdown. This updated version of Firmware Update 1.4 removes the slowdown you got when addressing more than 6GB, allowing you to install a pair of 4GB modules.
If you’ve installed the prior version of FWU 1.4, you will need to download the new updater from the link in the article and run the installer manually. Double-check the Boot ROM version to make sure the upgrade took place. Once it has, then you should be good to go.
Ok i know this is beat to heck by now but i have the same 13.3″ macbook aluminum (not pro) and i remember when that update came out. i was excited to get it because it would stop spinning the cd drive when i came out of sleep. I got it the day it was launched. so do I have to download the new one? and if i do which one do i do since its not the white macbook and not the pro? Will it even take the update since its called the same thing?
Check the boot ROM version. If it is MB51.007D.B03 then you should be good to go!
Hi Michael,
Please help me out here:
I have a 15″ MacBook Pro late 2008 model, currently running lion 10.7.1 and going to upgrade to 10.7.2, would 8GB ram work on my system?
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.8 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05 <—no need for MacBook Pro EFI Firmware Update 1.8 right?
and if so, which one should I go for? 1067MHz or 1333Mhz DDR3?
Thank you!!
George
George, You’re all good to upgrade to 8GB. The memory you’re looking for is located here:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
Hi,
Thank you so much for this article. I just wanted to clarify something before I make any changes.. If I have the late 2008 macbook pro with 2.4ghz and my boot rom version is MBP51.007E.B05. I do not need to make any updates to my firmware and am able to upgrade freely to upgrade to ddr3 1333 4×2 gb ram? wow!
Hey and welcome! There is a note on the memory upgrade page for your model:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
*NOTE: these models require the most current EFI version as well as Mac OS X v10.6.6. Please visit this link for more information
that I believe affects your model….check out that link and determine if your config is compatible then to use 8GB.
Hi there,
Just wanted to check. I have a 2008 MBP 15″ – 5,1 2.4 GHZ . So 8GB ram will NOT work with Lion OSX 10.7.2 ? Only with Snow Leopard 10.6.6 ? and the mentioned Boot ROM version.
If this is the case then 6GB ram would be the maximum….correct?
Thanks.
The 8GB works with 10.6.6 or later. The Lion OS is supported under our MaxRAM certification.
Hi Michael, Have you personally tested the MB 13″ 2.4Ghz machine running OS X Lion to accept 8GB ram?
All configurations were tested under Lion and yes the MacBook5,1 13-inch 2.4GHz machine does accept 8GB of RAM.
Forgot to state my that my MB is the late 2008 model but with this said and reading through the article above I understand that my machine will still accept 8GB ram with the correct BootRom installed. I want to upgrade from 4 to 8GB respectively and am not sure if Lion has this BootRom configuration as default upon the OS installation/upgrade. Did you have to update the BootRom after installing Lion on your test machine or has apple made it easy for us Lion users with discontinued machines to accept 8GB?
No, the EFI Firmware Update just needs to be applied once. It updates the hardware itself regardless of which OS you’re using.
Excellent. I’ve ordered 8gb should be here over the next week or so. Once I’ve installed both the ram and the efi update I’ll post the results here! Also thanks heaps for the article! Keep up the great work! :) cheers!
I am happy to report that my 13″ MacBook Unibody (Late 2008) is running like a dream since I installed the 8GB!!!!
To anyone out there who has the same machine as me and isn’t sure if they should go ahead with the upgrade, take it from it’s worth it and buy from OWC as without these guys we wouldn’t have known!!!! Here’s the stats of my MB 13″:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W89051YY1AX
Hardware UUID: 42B7612F-2443-5FD4-89AB-17952F3F7889
Sudden Motion Sensor:
State: Enabled
Don’t hesitate! GET THE UPGRADE!!!!!!!!
Oh, and one more thing…….thank you for answering my question or at least giving me the opportunity to get the question answered.
Hello,
So, it’s possible to run 8GB RAM on my MacBook (late 2008):
13-inch, Aluminum, Late 2008
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
Is that correct? If so, do I need to do anything at all at this point other than buying the RAM (2x4GB)?
Looks like you have the firmware update applied, so you are correct – just install and you’re ready to go.
Hi,
I´m running lion on my macbook, and i want to upgrade to 8gb. Is it possible??, RAM´s as to be 1066mhz or they could be 1333mhz?
Model Name: MacBook aluminium unibody (MB467/A) not PRO
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
RAM: 2gb DDR3 1066 Mhz
Thanks.
Yes, your MacBook Pro (15-inch Late 2008) can accept up to 8GB of memory.
Hello. I want to upgrade my mac to 8gb ram. I have macbook pro 5,1 late 2008 with Boot ROM Version: MBP51.007E.B05 so far is ok. I have 2x 2 GB Type: DDR3 Speed:1067 MHz instaled.Can I upgrade to 2 x 4.0GB PC8500 DDR3 1066MHz 204 Pin? There is little speed difference 1067mhz- 1066mhz, is it important? Any suggestion?
Is my 17 inch macbook pro compatible with 8 gb ram?
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.5 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B03
SMC Version (system): 1.28f3
and if not, what would be a good way to upgrade it so it can process my editing programs better?
According to our MaxRAM Memory Certification, your Early 2007 17″ MacBook Pro is capable of supporting up to 6GB of memory. This is a limitation of the memory controller itself and cannot be changed.
For better performance, installing a Mercury EXTREME Pro 3G SSD may give you the boost you need. For further tips I suggest you check out the Mac Performance Guide, as many tips there can also help get the most out of your Mac.
Thank you! So in theory 2 3gb ram cards would work? any brands you would recommend?
Why yes Jordan….we recommend OWC brand with it’s lifetime warranty. And it’s a 4GB and 2GB module set you would choose:
http://eshop.macsales.com/item/Other%20World%20Computing/5300DDR2S6GP/
thank you! Out of curiosity, would it be more beneficial to me and what I use my computer for, which is design, photo editing, and film editing, to just get a new macbook? or can my current macbook continue to serve my uses? I’m just curious what you think the best thing to do is here, I am a student in school and I need something cost effective, but if upgrading this machine isn’t going to last me in the long run, I’d rather upgrade. What do you think?
If it was just just photo editing, the 6.0GB should do just fine for you – I used Photoshop CS5 for a considerable time on 4GB in my Late 08 Macbook Pro with no major problems. With film, however – especially if you do a lot for school – jumping up to one of the newer MBPs may be better for you in the long run.
Even if you do that, though, you’re still going to want to maximize your RAM and hard drive. If you do that through the factory, it’ll cost you an arm and a leg. A similar amount of RAM purchased through OWC is almost always less expensive initially, and we even offer a rebate on the RAM.
An added benefit to a newer machine is that you could also take advantage of our Data Doubler, which would allow you to install an SSD for your OS and apps (giving you another nice speed boost), and use your platter-based drive for data.
Hi!
I would like to upgrade my Macbook Pro 5.1 to 8 Gigs.
You mentioned only 2.53 and 2.8Ghz models, but I have 2.66. Is it also upgradable?
Here is my configuration:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
SMC Version (system): 1.41f2
Serial Number (system): W890912571A
Hardware UUID: 201FE0D3-BC07-5C1D-9B7C-5E5CF808B0DF
Sudden Motion Sensor:
State: Enabled
Is it possible to upgrade it to 8 Gigs?
yes – your model is 8GB capable.
Allright so I’m running a MacBook Pro with a Model ID of MacBookPro5,1 and Boot ROM Version of MBP51.007E.B05.
so far so good…
I like how you guys are legit on tests, the blog is organized and the lifetime warranty really got my attention, so I’m planning on upgrading my RAM, I did found a cheaper one from kingston on amazon tough… besides the lifetime warranty what could you tell me to convince me to buy from OWC? Is your memory actually better than kingston’s?
btw Im comparing this one: Kingston ValueRAM 4GB 1066MHz PC3-8500 DDR3 SO-DIMM Notebook Memory (KVR1066D3S7/4G)
and this one: 8.0GB OWC Memory Upgrade 2 x 4.0GB PC8500 DDR3 1066MHz 204 Pin
thanks..
Why Buy OWC Brand Memory?
All OWC memory meets or exceeds manufacturer specifications.
All OWC memory is rigorously in-house lab tested to ensure superior quality, compatibility and reliability.
All OWC memory is backed by an industry leading lifetime advanced replacement. If you need your OWC memory replaced, we will ship to you same day.
We’ll even buy back your old memory and show you how to install it in your Mac.
Hmm.. and I did found out that the ValueRAM from kingston is not guaranteed to work… is made of a poorer quality than the others.. and now that you said that you can do the rebate on my old RAM it all sounded convincing enough =D… I’m buying OWC.. thank you
Prior to installing my 2 4GB chips from OWC, System profiler showed:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W88501YU1AQ
Hardware UUID: 118412F0-732E-50DA-82FF-6ECE4CEDBFB3
Sudden Motion Sensor:
State: Enabled
I attempted to install the EFI upgrade but it said I didn’t need it.
I installed the two 4GB chips. Now system profiler shows:
Model Name: MacBook
Model Identifier: MacBook5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB51.007D.B03
SMC Version (system): 1.32f8
Serial Number (system): W88501YU1AQ
Hardware UUID: 118412F0-732E-50DA-82FF-6ECE4CEDBFB3
Sudden Motion Sensor:
State: Enabled
Note – it shows 4GB, not 8GB. What gives?
Like your initial experience, do i have an early version of the EFI and need to force the upgrade?
if so, how?
hi is my machine upgradeable to 8gb ram
model id macbook pro 4.1
2.5ghz
boot rom version mbp41.00c1.b03
Sorry to inform you Robert but looks like 6GB max according to our testing and page:
http://eshop.macsales.com/shop/memory/MacBook/Pro/Core2/
still…more memory always equals a faster Mac….so you’ll still see gains by adding the max
thanks grant
Hi!
I tried the 2 firmware updates:
http://support.apple.com/kb/DL975
and
http://support.apple.com/downloads/MacBook_Pro_15_inch_SMC_Firmware_Update_1_2
but i keep getting that my macbook does not need this update??
Modelnaam: MacBook Pro
Modelaanduiding: MacBookPro7,1
Processornaam: Intel Core 2 Duo
Processorsnelheid: 2,4 GHz
Aantal processors: 1
Totaal aantal cores: 2
L2-cache: 3 MB
Geheugen: 6 GB
Bussnelheid: 1,07 GHz
Opstart-ROM-versie: MBP71.0039.B0B
SMC-versie (systeem): 1.62f5
That update is for the Late 2008 model macBook Pro 15″ machines only. You have an Early 2010 model. The firmware update does not apply to your machine.
So why can’t i upgrade to 8gb?
You should be able to upgrade to 8GB of memory as that is the amount Apple supports on your model.
When i mount the 8gb, my macbookpro7,1 stops during booting. I get the white screen with the gray apple and the little circle stops turning. Even after 10 minutes the macbook has not booted….
Try each 4GB module individually and see if you still have the same issues. It may be one of the modules has failed. Luckily, all OWC memory comes with a Lifetime warranty and can be replaced if that is the case. If each module boots individually though, please contact our Technical Support department for assistance in further troubleshooting.
So this is me…
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
I want to update my RAM, but not quite sure if I can use 8GB, I don’t have much experience with these things, so can you please tell me if I can use 8GB? Thanks!
Yes you can.
Hi sorry to ask but i have a Macobook Pro and want to uy 8gb but i have Lion this is for snow leopard or can install 8 with lion ??
As long as the firmware has been updated and the Operating System is updated to OSX 10.6.6 or later (that includes Lion) the 8GB is possible.
Dear,
I would like to ask if the next models are also compatible:
Kingston 2 GB SO-DIMM (link to other Web site removed)
Kingston 4 GB SO-DIMM (link to other Web site removed)
I understand that you also shell your own components, but if could please help me..
Thanks,
Joseph
Unfortunately, we cannot comment on the compatibility of any memory modules other than those sold by Other World Computing. We have not tested them ourselves, and therefore cannot offer a recommendation either way.
If I could be clearer with my question: How do I update to Boot ROM version MBP51.007E.B05 from version MBP51.0067.B00 when attempting to manually install MacBook Pro EFI Firmware Update 1.8 I get the message “This computer does not need this update”?
I am following the instructions of this article so that I may enable my machine to support 8GB of RAM. How do I successfully achieve this?
Original post:
“Hi, I have a late 2008 MBPro 15″ 2.53GHz (w/express card slot) and Model ID MacBookPro5,1. Boot ROM version MBP51.0067.B00 running OSX 10.6.8. When I try to manually install the MacBook Pro EFI Firmware Update 1.8 I get the message “This computer does not need this update” and I am not allowed to continue the install/update. Please help as I am very interested in purchasing and upgrading my RAM from 2GB to 8GB. Thank you!”
Any ideas?
1. Download the firmware update from http://support.apple.com/kb/DL975
2. Run the updater.
One thing to check if it isn’t working for you is whether or not the SMC firmware is up to date as well.
http://support.apple.com/downloads/MacBook_Pro_15_inch_SMC_Firmware_Update_1_2
If still experiencing and issue, please contact our Technical Support Team and they would be happy to assist in troubleshooting.
Hi I have a MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP41.00C1.B00
I just upgraded to OSX 10.6.8 and would like to boost the memory to 8GB as this computer is used in the field for video editing. It is a DDS 2 memory. Is 8GB possible for my set up? Thanks in advance PS: Just purchased a new MBP 17″ built out and received it only to find out LION will not support final cut studio 2 HD.
Your MacBookPro4,1 is OWC MaxRAM Certified to use up to 6.0GB of memory.
Hi, I have a late 2008 MBPro 15″ 2.53GHz (w/express card slot) and Model ID MacBookPro5,1. Boot ROM version MBP51.0067.B00 running OSX 10.6.8. When I try to manually install the MacBook Pro EFI Firmware Update 1.8 I get the message “This computer does not need this update” and I am not allowed to continue the install/update. Please help as I am very interested in purchasing and upgrading my RAM from 2GB to 8GB. Thank you!
What if you upgraded your MBP 5,1 as soon as the update came out? That is to say before the “secret” add-on of the 8 GB addressing capability? Would you still have the same version number but without the ability to utilize 8 GB of RAM? If so, how would one override the update version check?
Keep on tankin!
The “secret” part was more that it was an unannounced / unadvertised firmware update. If you updated anyway, you should be good to go and upgrade to 8GB.
i have upgrded 8 gb ram of kingston hoping for better speed in my mac pro 2009 13 ” as it was slow but not much changes and still slow
please advise proper steps for me as i am not so computer tech savy
regards
Dr srinivas
The MacBook Pro 13-inch Mid 2009 models are supported by Apple for up to 8GB of memory. Our benchmarking shows that when 8GB of our OWC brand memory is installed, it resulted in up to 50% faster runtimes of our Photoshop Action Test. Unfortunately OWC neither sells nor supports the Kingston brand. You may wish to contact Kingston customer support to discuss your situation.
Dear sir,
I am using a 13″ 2.0 gHz cpu which is one of the listed model.
I am runninig bootcamp with windows. One question is : can wondows 7 64 bits able to detect 8G RAM in this case?
Thanks.
As already answered in the comments… “As long as you’re running the 64-bit version of Windows 7, there shouldn’t be any issue in recognition.”
Hi there
Great article
From what i’m reading, my Macbook Pro 15″ Late 2009, now running Lion, will work fine if I upgrade my memory from 2GB to 8GB.
Just wondering if anyone has any recommendations for brands or models of memory to go for?
Any help very welcome!
Other World Computing, of course! This is the memory you’re looking for.
I have the following:
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.53 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
It is running Mac OS X Lion 10.7.1 and i currently have 2 x 2 GB 1067 MHz DDR3. Will I be able to upgrade to 2 x 4 GB RAM? – Which brand is recommended?
Other World Computing, of course! This is the memory you’re looking for and, yes, we do ship worldwide!
Yeah, but to do ship to Denmark from some place inside EU? – Elsewise it will be quite expensive because of taxes and fees.
All our products ship from our headquarters in Woodstock, IL, USA.
Oh, okay – Thanks a lot for the answer. I would have to pay nearly double to get it to Denmark, so I’ll contemplate a bit more.
finally my MBP late 2008 is running with 8GB ram and 1 TB hard disk! Thanks OWC! I just got the items 2 days ago and so far everything is working ok, my Aperture 3 gain speed and I am happy I took the upgrade!
Awesome. Received OWC package today, installed it less than 5 min and now I am enjoying the 8gb memory on my late 2008 MB unibody 5,1. Thinking of removing optical drive and put a SSD in the near future. Thanks OWC.
Hey guys, I have a late 2010 macbook
MB71.0039.B0B
Model Identifier: MacBook7,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Could i upgrade to 8gb ram without the EFI firmware change? Or will it even work if i update the EFI?
I am also running 10.6.8
The EFI update does not apply to your machine. The MacBook7,1 can accept up to 8GB of memory.
Yea i went to apple.com and searched EFI update.. im up to date and hoping this little upgrade to 8gb will work :D
Thanks!!!
I am running OS X 10.7.1. My MacBook configuration is given below. I was wondering if I can use 8 GB of RAM total. I appreciate your help in providing clarifications
Hardware Overview:
Model Name: MacBook
Model Identifier: MacBook6,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.26 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 3 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MB61.00C8.B00
Yes, the MacBook6,1 is capable of using 8GB of RAM.
Model Name: MacBook Pro
Model Identifier: MacBookPro4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.5 GHz
Number of Processors: 1
Total Number of Cores: 2
L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 800 MHz
Software Mac OS X Lion 10.7.1
Memory 4 GB 667 MHz DDR2 SDRAM
Questions
1) I know it’s upgradable to 6GB but do we need any extra firmware or software to update after installing to 6GB?
2) What’s the significant differance after the additional upgrade from 4GB to 6GB
Main use, Phototshop CS5 photo editing.
When opening a few apps at the same time now, the whole computer slows down. I am not able to play 720p and 1080p videos as it becomes jumpy and slows down. iTunes songs keeps slowing down too whenever I scroll or open new pages.
I should not have upgraded to Lion……!!!!
1. No additional firmware is needed.
2. You can see the performance differences yourself in our memory benchmarks.
In short, more memory is always better when running Photoshop CS5.
i have a late 2008 macbook… but its is has the components of a macbook pro 2.4 processor and 2gb memory. will i experience any problems using the firmware update provided…any long term affects? and since i have the components of a macbook pro should i download the firmware for the macbook pro?? please help
Open up System Profiler and check the Model Identifier (here are some instructions, if you don’t know how).
Hey Guys i have macbook 5,1 late 2008 2.53ghz model (with expresscard slot), and i’m currently running Lion 10.7.1 will i still be able to adress the 8GB memory ? or it’s a 10.6.6 only thing ?
Cheers,
Tiago
Still works – It’s a 10.6.6 or later thing :-)
The MacBook 5.2 (mid 2009) can use 2x 4GB! I have installed it on my wifes MB! It’s the last white MB befor the white unibody.
I have to ask because I don’t think anyone else has yet… but what of the MacBookPro3,1?
Am I crazy to think it may support 8 gigs, or will I need to be satisfied with 6 gigs?
When I bought this thing I loaded it as fully as I possibly could have with apple certs, so i’m hoping I can still squeeze a few years out of it before purchasing another one! This was a late 2007 model I believe, a 2.4ghz core 2 duo with stock 4 gigs of ram… i’m definitely IMMENSLY curious if I can update or not to 8! Anyone with the information, I would be very appreciative to have it relayed to me!
Looks like a few others have asked, I stand corrected, but still no answer. Also Lion is out now so i’m curious if this changes anything at all!
The MacBookPro3,1 has been OWC MaxRAM Certified to use up to 6GB of memory.
Wonderful article. I currently have a macbook (late 2008) 2.4 ghz with 4GB of ram running Lion. Under the system profile it’s listed as a macbook 4,1. I haven’t seen anything here or online that says that a macbook 4,1 can do more than 6 gigs of ram. I am wondering, based on your results, if I can indeed go ahead and use 8 gigs. Any information would be appreciated.
The MacBook4,1 models have been OWC MaxRAM certified up to 6GB of memory.
Any news on if the ram will be recognized by WIndows 7 through bootcamp?
As long as you’re running the 64-bit version of Windows 7, there shouldn’t be any issue in recognition.
Hi, great review! At last, my macbook pro has some easter egg feature in it. hahaha.
Do you (OWC) have representative in Indonesia? I want to upgrade my late 2008 mbp RAM to 8gb, but i’m afraid the other brand won’t be compatible (since OWC is the one make this research, and worked flawlessly).
Hope to hear from you soon. Thanks.
We do ship worldwide, but we are located in Woodstock, IL, USA.
WIll my late 2008 macbook pro compatible with PC10600 1333 MHz 8GB DDR3?
I use PC3-8500 1066 MHz 4GB DDR3 (2x2GB) right now.
Thanks a lot,
Stephen Gunawan
Hi Stephen…nothing to be gained by using that as well as not listed as compatible with your MBP….visit this page for the options recommended for your machine:
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
Thank you so much. You are really helping. Appreciate it so much. One more thing to ask. As you may know, there is new firmware EFI 1.8 update. Will it change anything? Will it compatible with 8GB RAM? Is it ok to update? Thanks.
Best Regards,
Stephen Gunawan
The original point of this post is that EFI firmware update 1.8 was released for the MacBookPro5,1 models and that after applying the firmware update, those machines were able to address up to 8GB of memory instead of the previous maximum of 6GB of memory when running OS X version 10.6.6 or later.
So you will want to apply the EFI firmware update 1.8 (if it hasn’t already been updated) and make sure you are running OS X 10.6.6 or later (yes, that includes Lion) to be able to install two 4GB memory modules for a total of 8GB of memory.
I can confirm that PC10600 1333 MHz 8GB DDR3 memory will work in a MacBookPro5,1. I’ve been using it for over 6 months.
While some people may have success with other types and sizes, we STRONGLY recommend against using any other confirguation than what we have tested and confirmed for proper operation.
I just received my (2) 4GB sticks and thanks to this blog, I didn’t go buy a new MacBook. I need the memory for graphics projects and VMWare Fusion – and 2GB is painful. Memory is so low-cost that the price is barely a consideration any more!
Thanks tremendously OWC! You saved me at least $1300.
p.s. it was an upgrade from 2GB! Btw, OS X Lion runs like a dream now. Prior to the memory upgrade I was regretting the OS upgrade due to system slow-down and boot-time.
Hey Jeff-
So you CAN run Lion with 8 gigs of memory on a 2.4ghz Late 2008 MBP? I’m desperately trying to find out. Thanks!
-Colby
Yes, The 2.4GHz MacBook Pro released October 2008 (model ID: MacBookPro5,1) can use 8GB of memory. OS X Lion, while it requires 2GB of memory to run, 4GB or more is recommended for optimum performance.
Hi Michael,
with the following specifications, is it possible for me to upgrade to 8 GB DDR2 800Mhz? Thank you very much.
MacBook5,2
Intel Core 2 Duo 2.13 Ghz
MacOS 10.6.8
Memory 2GB
Boot ROM MB52.0088.B06
SMC Version 1.38f5
mathias, your MacBook can accept up to 6GB of memory.
thank you
Actually, my own experience is that this MacBook model does work with 8GB RAM. I tried it after I found this reference: “https://discussions.apple.com/thread/3008609”, burning it in with memtest86+ for four full passes, no errors, It’s been running on 10.6.7 for a week now, no problems. Like the Apple poster, my EFI firmware ends in B05, not B06, so I don’t know if that makes a difference.
Has anyone tired doing the EFI 1.8 update when using 10.7 (Lion)? I’m getting the message that I do not require the update. I don’t think I did it while I was running 10.6. I have the MBP51.007E.B05 firmware currently. Thanks
We don’t have a machine left that wasn’t updated to MBP51.007E.B05 prior to Lion’s release. However, you have the correct version of the firmware update already so you’re good to go!
Confirmed this works just fine, running on 10.7. Upgraded my MacBook5,1 from 4GB to 8GB, after reading a zillion articles claiming “does not” and another zillion claiming “it does”. :)
Boot ROM Version: MB51.007D.B03
Used two standard Kingston 4GB modules, 34€ each.
Any news if the 8GB upgrades work on Lion? I am thinking of upgrading my MacBook 5,1 with 1.4 EFI updated but the article addresses Snow Leopard only. Any help appreciated, thanks!
No issues in Lion whatsoever.
I am very curious about this topic. Not only I heard that with the update you can get those 8GB to work, but also you can use the same DIMM from later models.
https://discussions.apple.com/thread/2768756?start=0&tstart=0
I want to buy the latest Mac Mini server to unload many tasks I usually do on my MacBook. I wanted to use the DIMMs from the macmini (4GB) with my old macbook and upgrade the server to 8GB
Our macbooks have DDR3-8500 RAM and the mac mini DDR3-10600 RAM. According that person the 10600 modules DID work on his late 2008 macbook.
Does anyone knows about it? I am really concerned about messing up my macbook
I can confirm that PC10600 1333 MHz 8GB DDR3 memory will work in a MacBookPro5,1. I’ve been using it for over 6 months.
While some people may have success with other types and sizes, we STRONGLY recommend against using any other confirguation than what we have tested and confirmed for proper operation.
macbook 2ghz intel core 2 duo, 2 gb 1067 Mhz DDR3
Macbook5,1 2008 edition
I just installed 8GB of RAM in my 5.1 Macbook unibody with a 2.4Ghz C2D.
It’s working flawlessly and is recognized by OSX Lion. I am now running a memtest to be sure everything is fine, but by the looks of it it is.
I’m currently using the 8GB upgrade kit on my MacBookPro5,1 with OS X 10.6.8 and it’s working perfectly. I’m thinking about upgrading to Lion but I’m hoping to confirm that I will have no issues when I do. Here’s my current configuration from the System Profiler…
Model Name: MacBook Pro
Model Identifier: MacBookPro5,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 8 GB
Bus Speed: 1.07 GHz
Boot ROM Version: MBP51.007E.B05
SMC Version (system): 1.33f8
Yes…MacBook Pros with a Model ID of MacBookPro5,1 should have a Boot ROM Version of MBP51.007E.B05.
Do you mean there is no updated Boot ROM for OS X 10.7 Lion and the Boot ROM is working the same as with 10.6.8 and the 8GB continues to work?
If I’m reading this right, at some undetermined point, Apple changed the code of this EFI update (which was originally released on December 8, 2009) without changing the the revision name. In my case, I have the MBP51.007E.B05, but I performed the update the day it was released. Is it correct that a second revision of MBP51.007E.B05 was released at a later point (of which we do not know) and therefore there is no way to distinguish which firmware update is actually capable of handling 8GB? I’m running Lion on my 2.53GHz and I’ll be attempting an 8GB installation tomorrow. The OWC article states that they had to manually run the “same” update again to take advantage of the 8 gigs. If my upgrade doesn’t work, how can I reinstall the “new” EFI update manually like these guys did?
I can confidently say that a Late 2008 15″ MBP, 2.53GHz running OS X 10.7 Lion with the EFI firmware update MBP51.007E.B05 (which was installed the day it came out) works flawlessly on my machine with the newly installed 8GB of RAM. I opened just about every application on my machine and didn’t get a single kernel panic. I then performed an extensive memory test, which pegged the RAM usage at 99% for over an hour, with all tests coming back perfect. I’m glad I risked the upgrade. I’ll report back if I run into any problems, but for now, I’m running 8GB without any problems. Thanks for figuring this out OWC!
Hello Japsser, did everything work well after the memory test? I have the same laptop and am planning the 8 gb upgrade while running lion.
Ok thanks for the info. I’m trying to follow along and just want to make sure that I am indeed capable of upgrading to 8gb or ram. I have the following setup:
MacBook Pro 15″ 2.8GHz model w/ExpressCard Slot (Late 2008)
MacBookPro5,1
MBP51.007E.B05
Running the updated OSX Lion 10.7
Should I update to EFI firmware 1.8 or am I go to go ahead and increase to 8gb of memory?
Please respond when you have a chance.
You have the updated firmware – your system should be good to go!
How about a Macbook 5,2 (2.13)? It has boot firmware MB52.0088.B06 and was just upgraded to Lion? If so, what part number do I need to buy for 8GB?
Super article…very helpful. Question: If I upgrade to 8Gb, will it work with Lion?
Hi Ed…we’ll be confirming all memory configs just as soon as Lion is made publicly available.
It’s out! Has anyone tried it?
Hi there- great article.
I’ve got a late ’08 macbook pro and would really like to stick in 8gb memory (i use a lot of video editing and 3d rendering programs etc)
I’ve just updated to OS X Lion today, so it would be great to know if this 8GB is going to work with Lion without issue.
Many Thanks
Hi David…no issues at all…install 8GB and enjoy Lion.
What about my 2.66 GhZ late 2008 15″ MBP? My firmware is the one mentioned, and I have Snow Leopard. Will 8GB work?
If your MacBook:
has a Model ID of MacBook5,1
has a Boot ROM version of MB51.007D.B03
is running Mac OS X 10.6.6 or later
you should be able to address the full 8GB without the previously-found significant system slow down 8GB presented before this update.
i have a late 2008 unibody 2.4 macbook pro. the model identifer is 5.1 and the BOOT rom is MBP51.007E.B05. am i good to go up to 8gb. and if so, is this okay?
non-OWC brand memory link removed by editor
THANKS in advance!
Yes, your machine fits the qualifications.
One key factor to keep in mind is that OWC Brand memory meets or exceeds Apple’s specifications. As such, we are not stating that all brands of memory are included in this discovery, simply that OWC RAM has been tested and certified to work.
That said, the links to the compatible memory can be found in the post.
Hi, I have the MacBook Pro (15-inch, Late 2008), where the Boot ROM Version reads MBP51.007E.B05 but am running OS X 10.6.8. You mentioned that for the 8GB to work it has to be running on 10.6.6. Dumb question, but with the updates and eventual move to Lion, will the 8GB RAM still work?
10.6.7 & 10.6.8 have both shown no issues. When Lion comes out, there should be no issues with the full 8GB of memory being accessed either.
As answered earlier in the comments, the firmware update unlocked hardware’s ability to address 8GB; think of it like the chicken breaking through the shell of its egg – now that it has hatched into an 8GB chicken it won’t return to its 6GB egg.
there is a new EFI Firmware Update available for the MacBook Pro5,1. Does this affect the 8GB ram situation. You may want to update the article to refer to the new boot ROM version.
Hello Alistair,
According to Apple: http://support.apple.com/kb/HT1237 , the firmware update we refer to in the article is still the most current version.
As far as any searches on Apple’s site have shown, Version 1.8 (released in December of 2009 and linked above) is the latest version designed for the Late 2008 MacBook Pros (MacBookPro5,1).
If there is another such EFI firmware update, please post a link to its corresponding page on Apple’s site and we’ll take a look at it.
I’m receiving kernel panic every now and even having the latest firmware and OS, are others having problems like mine?
MacBook5,1
Intel Core 2 Duo 2 Ghz
MacOS 10.6.7
Memory 8GB
Boot ROM MB51.007D.B03
SMC Version 1.32f8
I tried manually updating using EFI 1.4 but it just say “Computer does not need this update”. Help :(
I have all the requirements for the upgrade on my MacBook 5,1 but I’m having trouble finding the answer to what I feel would be one of the most important questions…
How effective is the upgrade at enhancing performance?
The memory benchmarks have been updated to show the performance gains of 8GB of memory.
Scratch that…
http://eshop.macsales.com/shop/apple/memory/Macbook_Memory_Benchmarks
I seem to always miss the links to the posts that answer my questions until I ask them.
Thanks for all the great resources OWC!
the current EFI update, available on the apple site, was created on16/12/2009.
My MSHWFirmware_2009_12_31_10h27m46s.log (the log file which records the update for the optical drive) is dated the 31/12/2009. – (use console to check)
I think that means 8gig will work for me. – i will report after I receive the ram.
can anyone who updated before the 16/12/2009 tell me if their machine works with 8gig?
Is anyone having problems who updated after 16/12/2009?
OK, I read this today. I own an aluminium MacBook (MacBook 5,1). Your article says that your MacBook was already updated with the superdrive/EFI update and hence you had to re-download and install the newer one. The Boot ROM version of my computer is: MB51.007D.B03, which is what you say it should be. I had installed this update on Dec 9 2009. The current EFI 1.4 updater on Apple’s site updates the EFI to MB51.007D.003.
BTW, I downloaded it and ran the installer, but it quit saying “this computer does not need this update”. So will 8 GB work for me?
Thank you :)
Yes, it is not uncommon for the firmware update to be tweaked down the line to either optimize the update process or resolve minor issues that aren’t deemed widespread enough to merit another firmware update release. MacBook5,1 will update to MB51.007D.003 as the latest build of the updater is completed and 8GB should work without issue at that point.
Thanks for replying :)
I’m sorry I didn’t clearly understand you. My MacBook’s current Boot ROM version is MB51.007D.B03, but it refuses to update to MB51.007D.003. Are you suggesting that Apple is in the process of releasing an updater for this, because this installer is quite old (2009)?
Can I have 8gb with my current boot ROM version?
I think it was I that misunderstood you. If you have the MB51.007D.B03 version of the Boot ROM already, then that is the tested version that we announced this post with.
Yes, your machine can address 8GB of memory.
Thank you :)
I bought and installed the 8GB kit as soon as I read this blog. I have the proper firmware and model id. Everything was working perfectly, until the last security update. Since then, I have experienced dozens of kernel panics, and sometimes the laptop refuses to boot unless I remove one of the 4GB modules. Then it boots normally, and I can shutdown the machine and set the module once again.
Has anyone else experienced this?
I had this issue. Most likely, the RAM was not inserted tightly. Just pull all the RAMS and place them back again one by one and press each RAM stick until it fully inserted.
I don’t change hardware on my MAC often
but shouldnt you clear out the PRAM when doing a memory change?
I know on a PC I would reset the CMOS
Bought this upgrade. It wouldn’t work at first. Then, I switched the slots in which I placed the 4GB sticks and everything worked fine. That is, at first it was stick 1 in bottom slot 1 and stick 2 in top slot. Only one stick showed up as useful. Then, I switched stick 2 in the bottom and stick 1 in the top. It now shows 8GB of RAM total.
Bought this upgrade and tried following all of the directions. One slot says its empty, the other slot reads that it has 4GB of RAM in it. Is that the problem others have?
Just wanna chime in that i’m happily using 8gb for 2 weeks now on my MBP 5,1 2.4 on Leopard 10.5.8 :)
So, I’ve been following this thread for a while now.
I’ve got a MBPro 5,1 with the the “old” EFI update (I did it when it first came out), but it is MBP51.007E.B05. I’m running 10.6.7 – and as others here have also alluded to, I also can’t run 8 GB of RAM without kernel panics all over the place; I’m stuck at 6 GB.
I’m wondering if ANYONE, from OWC or otherwise, can tell us how to “re-apply” this new MBP51.007E.B05 firmware – or can anyone confirm that it’s even possible? Are those of us that updated when the EFI update first came out permanently stuck with no more than 6GB?
If the above doesn’t get the update going (there should, at some point, be a grey-screen with an update status progress-bar), then hopefully the OWC chaps will show you how they did it ‘manually’ via Terminal etc.
oto & Erin,
Maybe try using Pacifist to manually install the EFI 1.8 ‘secret update’ ?
Installed will be:
In the Utilities folder the app MacBook Pro EFI Firmware Update (v1.8 12/12/09)
In System/Library/LaunchAgents will be com.apple.updater.macbookpro.efi.plist
The plist should activate the EFI update on boot-up.
I bought this 8GB upgrade kit for my Late 2008 Macbook. It works great. I also have a 100GB SSD from OWC installed. I run Windows VM’s with Virtual Box. The VM’s are stored on my original hard drive that is now in a USB cage. Pretty awesome that the VM’s run faster from the USB drive than they did when running on that same hard drive inside my MacBook. The SSD showed the largest performance gain. RAM just let’s me run more apps and VM’s without having to manage the RAM or worry about slow downs. It truly is like a new machine.
There are instructions on how to downgrade from EFI 1.7 to 1.6 . But this process doesn’t work if the EFI is already at 1.8.
Anyone know of an image with a similar tool, but downgrade a 1.8 to a 1.6 or 1.7?
It seems that if you updated early then you’re out of luck for this. I think I might be in that camp. Is there a way to reset the boot rom back to an older version so you can then do a manual update of the “secret” version to get the functionality? I was thinking maybe through some way of reverting the machine to factory settings and updating manually? Just trying to find a way to get this working for my Macbook. Thanks for any suggestions/tips.
It looks like 8G is recognized; indeed it’s reported. Yet using memtest and using Activity Monitor 2.35G is reported as Inactive. Have testers reporting 8G seen this using Activity Monitor?
When launching lots and lots of apps, there always seems to be inactive memory of about 2.3G. When I launch enough apps, I do see some page outs.
Is the last 2G of RAM phantom? (Seems to be. When I finally get some page outs, approximately 2.3G to 2.4 remain as Inactive.)
Is this maybe a MacBook Pro that got the “early” EFI update?
Has anyone found away to force install the 1.8 EFI when the message is just “This Mac doesn’t need this update”?
MacBook Pro 5,1
The noted Boot ROM Version of MBP51.007E.B05.
Memtest report:
Mac OS X 10.6.7 (10J869) running in multiuser mode
Memory Page Size: 4096
System has 2 Intel core(s) with SSE
Requested memory: 6864MB (7198167040 bytes)
Available memory: 6864MB (7198167040 bytes)
Allocated memory: 6864MB (7198167040 bytes) at local address 0x0000000101000000
Attempting memory lock… WARNING: Testing with unlocked memory may be slower and less reliable
ERROR: Memory lock failed – reason unknown.
Partitioning memory into 2 comparison buffers…
Buffer A: 3432MB (3599083520 bytes) starts at local address 0x0000000101000000
Buffer B: 3432MB (3599083520 bytes) starts at local address 0x00000001d785a800
About this Mac report:
Memory Slots:
ECC: Disabled
BANK 0/DIMM0:
Size: 4 GB
Type: DDR3
Speed: 1067 MHz
Status: OK
Manufacturer: 0x04CD
Part Number: 0x46332D38353030434C372D34474253510000
Serial Number: xxx
BANK 0/DIMM1:
Size: 4 GB
Type: DDR3
Speed: 1067 MHz
Status: OK
Manufacturer: 0x04CD
Part Number: 0x46332D38353030434C372D34474253510000
Serial Number: xxxxxx
Thanks in advance for any feedback.
Thanks Michael. I am wondering if maxing an iMAC mid-2008 from 6Gb to 8Gb would be also possible using the current EFI and 10.6.7?
I bought 4GB kit to make it 6GB.
@OWC Michael Good job!! Also, maybe updating the blog entry is good?
The 8GB memory configuration has been tested using 10.6.7 and as we expected was found to have no issues.
Also asking if 10.6.7 is supported.. Just ordered 8GB kit, waiting for it to arrive..
Quite an interesting pricing. 8GB now costs the same 4GB module bought Nov last year.. just half year. half the RAM price.
I’ve got this model (which is on the list for 8GB upgrade):
http://www.everymac.com/systems/apple/macbook_pro/stats/macbook-pro-core-2-duo-2.53-aluminum-15-late-2008-unibody-specs.html
It appears that you offer either a Samsung or a OWC product:
http://eshop.macsales.com/item/Other%20World%20Computing/8566SAM3S4GB/
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
I am curious as to what it means on the Samsung product page when it states “Factory Original”. Does this mean that these are the same memory cards originally installed by Apple?
I don’t see any difference in the specs for these, so is the only real difference that your paying for a “Samsung” sticker on it?
Thanks for your time!
Hello G.S.,
Yes, the difference between the two is mainly brand name. Both come with a lifetime warranty directly through OWC so you can buy either with confidence.
@Jeff That was what I came here to ask! Grant, when will OWC do a test on 10.6.7 for 8 gigs?
Hi m3kw and jeff…we’ll get to that shortly.
Can anyone confirm the 8gb still works after the 10.6.7 update that went out today?
Hello,
thanks for the insight, so you guys are suggesting me to wait till Lion comes out, fine.
But in this comparison page, you guys haven’t used 8GB RAM kit in the benchmark test for my MBP.
MacBook Pro 15″ Late 2008 “Unibody”
2.4 GHz Core 2 Duo (MacBookPro5,1)
http://j.mp/gO7V79
Right…we haven’t done the benchmarks yet on that MBP….should be in next few days.
Hello,
My MacBook Pro with a Model ID of MacBookPro5,1 and has a Boot ROM Version of MBP51.007E.B05.
So, I am eligible to upgrade to 8GB kit, but what happens if Lion comes out, will it hamper the performance or will it work flawlessly. I just need a technical assurance from OCW before I can buy the 8GB kit from them
Hello Samrat,
Yes, you have a correct Boot ROM version to allow you to use 8GB of memory in your MacBookPro5,1 model. When Lion comes out, there should be no issues with the full 8GB of memory being accessed. The firmware update unlocked hardware’s ability to address 8GB; think of it like the chicken breaking through the shell of its egg – now that it has hatched into an 8GB chicken it won’t return to its 6GB egg.
Hi Samrat:
As an Apple Developer, we cannot discuss products that haven’t been released yet by Apple. So, as our information stands, we have tested the 8GB under 10.6.6. Perhaps waiting is the best course of action….and you can see our money back guarantee here:
http://eshop.macsales.com/Service/warranty/owc-memory.cfm
Grant,
I ask because the system IS reporting 8 GB but it is extremely slow. It appeared to work when i first installed but by the tim i restarted it was completely slowed down. Any troubleshooting tips? Maybe try with a 4 GB and 1 GB and see if it runs faster than both the 4’s?
You shouldn’t see any system slow down if the EFI update is correct. That’s why we used to limit our offering to 6GB…because when we used 8GB, significant system slow down would be observed. Double check with our tech support staff if they have any other tips:
http://eshop.macsales.com/tech_center/index.cfm
I’m happy to report that I have been using my replacement 8gb set with no problems in my MB5,1 for a few days now.
Glad to hear it Jeremy!
i’m with the macbookpro3,1 boys here.
but i guess i’ll settle for the 6gb kit since i also saw in other sites that 6gb is the max for these machines.
not to mention, of course, that from this article, i suppose owc also tried the snowy 10.6.6 + updated fw on the 3,1 and 4,1.
XBench 20 comparisons 4gb v 8gb:
http://tinypic.com/r/2lvcuhk/7
Sweet.. here is a screen cap of my updated 5,1.
http://tinypic.com/r/2rcnbx1/7
On my Macbook 5,1 with 8 GB 1333 installed the bootcamp works normally.
I purchased the 4GBx2 for Macbook 5,1 unibody late ’08 with the 6GB warranty. I have installed both modules and my system profiler is saying 8 GB. Is there any reason to believe it would have issues when i go to use more than 6 GB or as long as it says 8GB it should work just fine?
Hi Kevin…not sure what you mean by 6GB warranty…but if both modules (for total of 8GB) are reporting under System Profiler and your system isn’t experiencing any ill effects or oddities, sounds like things are working just fine then. Ideally, best way to test is a high memory app, task, etc. to determine if your system is faster now.
Second the above question…any way to get a mb pro 3,1/4,1 to boot off the mb pro 5,1 efi, or has anyone tried 8gb of RAM after the 10.6.6 update to see if the 6gb limit/instability has been removed for the 3,1?
Great!
I have access to MBP51.007E.B00 and also MBP51.007E.B05.
I’m assuming if I can find a way to compare the boot.efi files it might be possible to apply the 8GB enabling code to the boot.efi of my MBP3,1?
Or try to boot the MBP 3,1 with the boot.efi from the 5,1?
I’m holding out hope that the current 6GB limit is not hardware based, just for fun…
Any tips welcome!
Hello people. I bought a 6GB RAM (4GB x 2GB) combo from OWC about three months ago and all was swell since I read this post. I really couldn’t believe that this was recently discovered, since from the beginning, I was always interested in buying the 8GB kit for my Macbook.
Now that I know that it is compatible, I’m dying to get my hands on more RAM, which would be perfect for my virtual machines. I already have a 4GB module and I would only be interested on another 4GB stick. Would it be possible for me to actually send back the 2GB module I bought from OWC (plus the 2GB of RAM [1GB x 1GB] that came with my Macbook) in exchange for a lower price for the module I need?
Regards.
We do offer a memory rebate for sending in your previously purchased or Apple original memory modules with purchase of a new memory upgrade.
So far all good. Macbook Pro 15 2.4 (2008). Parallels 6, 1 VM Windows 7, 4 gigs. PS CS5, Office 2011 Word and Powerpoint and Outlook, along with Safari.
7.76 gigs used, page outs 1 mb, 21mb swap used. Everything humming.
Hi guys!! good to hear this news from OWC :)
i’ve the following boot rom number: MBP51.007E.B05
is it ok?
Thanks
Yes, that is the Boot ROM version.
AWESOME!! I just received my 8GB upgrade today from OWC for my late 2008 aluminum unibody MacBook. I installed it, fired ‘er up, and was up and running like a pro! I jacked up the available memory for my Parallels 6 to 4GB and it is running amazingly fast!! I wanted to make sure I didn’t have any problems when I went above 6GB so I opened all the programs I could (ran out of programs to open), and am sailing along at 7.14 GB used with no issues and NO PAGE OUTS!! I am so glad I was able to do this upgrade… with 8GB of RAM and my SSD, my MacBook is absolutely AMAZING!! THANKS OWC!!
with the 8GB upgrade, will we still be able to use bootcamp/windows? Or is this firmware update only allow 8gb within Snow Leopard 10.6.6?
I ask because there was specific mention that the OS X had to be 10.6.6. Obviously if booting into bootcamp I would not be in OS X at all.
Thanks! :)
Firmware updates how the hardware itself handles the memory addressing, so regardless of which program you are running, the memory should work fine. The reason for the 10.6.6 update is that update of Snow Leopard is where the firmware update was discovered.
Yes, I have received some fantastic service and we were able to narrow it down to a bad module. My new memory is on the way and I’ll be up and running with 8gb very soon!
I continue to be impressed with both the products and support I get from OWC.
Hi Jeremy,
I see our tech support team diagnosed one of the modules as faulty and have already shipped out a replacement to you.
You should see no further issues once that new module arrives.
FWIW – we do extensive testing ongoing, but things still happen beyond our control – from general handling and other low probability scenarios. Right now, in addition to 100% module testing (memory fault testers) – 25-40% of ALL of these kits are actually tested in actual Macs here. We have shipped about 2500 8GB DDR3 SO-DOMM 4GB x 2 Kits (1333 and 1066) in March to date alone. Huge numbers and with an extremely low failure rate.
@OWC Grant: I track swap files carefully during production work as an indicator of performance. With the OWC SSD solution, I can go up to 14 swap files (up from 9 with a HD boot disk) as monitored by Menu Meters before getting into performance slowdown territory.
That many apps open doing that many things (a quite unnatural scenario) would normally have jumped to 11 swap files. Performance was undiminished at 8 swap files.
So it isn’t so much that performance is improved as it is that good performance is sustained far longer than I’d been used to in the past. That’s certainly worth the upgrade.
Grateful for the conversations and experiences posted here.
I installed the second 4GB chip in my MB Pro 2.8 ghz and after 14 hours, everything is working fine.
Some background for anyone considering this upgrade…
MB Pro is a BTO late 2008 model with a replacement motherboard from Apple in May 2009. Neither version of this motherboard accepted the Firmware update, saying that it wasn’t needed.
Tested with every RAM hungry app I own, running Lightroom, Photoshop with four 400MB files open, Aperture and Parallels with two VMs running Ubuntu and Windows 7, both updating their OS’s simultaneously.
Absolutely saturated the memory, no issues, no regrets. Much thanks to OWC for opening this discusssion and allowing customer experiences to enrich their findings.
Considering that this chip cost 25 percent of the price I paid for the first one, it’s a bargain on every front.
Sweet to hear Mark….and to confirm….with the 8GB and those apps plus files open, system performance is improved?
I purchased your 6gb upgrade kit for my MacBookPro5,1 at a premium price when it was the only way to get more than 4gb working. Now that 8gb works and I meet the boot rom and system software requirements, will you take the 2gb module back and trade it in on for a good price on the second 4gb module? Your 6gb kit has worked great so far, but many of us early adopters stuck out neck out there for OWC since everyone else in the Mac community said it wouldn’t work and would lead to all kinds of problems for your MacBookPro. Thank you for all the hard work supporting the Mac community!
……..
Many thanks…… Chip
Well Chip….Apple and others said only 4GB would work….but we spent considerable testing time to confirm 6GB would.
You got to enjoy 6GB benefits for all this time so I think things are pretty square… ;-)
Still…we do offer rebates up to $13 for third party memory…which includes ours…check out the rebate page here:
http://eshop.macsales.com/tech_center/support/rebates/memory.cfm
And hey…thank YOU and others for your support and trust!
Has anyone tested any of the other 6GB MBP’s to see if they will now take 8GB with 10.6.6? I have a MBP 2.2 (Late 2007–3,1) and it works fine w/ 6GB–wondering if OS X was what was holding it back….maybe the latest firmware is fine?
I got mine today for my Macbook5,1 2.0Ghz.
I have firmware MB51.007D.B03 and 10.6.6.
Laptop hung on first boot. It finally got past the white startup screen, but never got a cursor and never moved beyond the blue screen.
Panic on second boot after a loooong wait.
Third time, after reseating modules, it booted and logged in, but screen started flickering and system locked.
4th time, panic again.
I guess I am not so lucky. I confirmed the firmware again and just to be sure I tried to install the EFI update again and it won’t because it says the update is not needed.
Guess I’ll go back to my 4GB of OWC memory.
Hey Jeremy and sorry to hear about that.
Could be a bad module….despite our testing protocols….”stuff” happens ;-)
Believe our CS/TS team is reaching out to you. And word to wise for all here….while the blog crew is pretty smart and helpful….if it’s a tech issue….you’ll be far better and faster served if you just go right to them. They can make things happen faster than we can.
One reason why we offer 24/7 support….always want to be able to help.
Has anyone tried 1333 RAM?? Any problems or feedback
Module Size: 8GB Kit (4GBx2)
Package: 204-pin SODIMM
Feature: DDR3 PC3-10600
Specs: DDR3 PC3-10600 • CL=9 • Unbuffered • NON-ECC • DDR3-1333 • 1.5V • 512Meg x 64 •
As I mentioned on Monday, I decided to give it a try so I purchased the 8gb kit from OWC. I checked my BootROM and that it was 5,1 and everything was all ready to go.
I installed the ram today and my Late 2008 MacBook Pro now shows 8gb of ram and it works great. The most difficult part was finding a screwdriver to take out the tiny screws. I ended up going to Walgreens and picking up a $4 eyeglass repair kit and it worked perfectly.
The only caveat is that I was told by an Apple tech that if I replaced the ram myself, then I voided my AppleCare warranty. I found that hard to believe since they have the ram replacement directions printed right on the inside of the battery cover. But that is what the Apple tech at the Apple store told me.
Glad to hear it worked for you. Those small Phillips screws can be a bit pesky if you don’t have the right tools.
However, I would be remiss if I didn’t mention our own toolkits, which work great for all sorts of upgrades.
We have a $5 toolkit available, which is nice, but for my money, I highly recommend kicking in an extra 10 bucks and getting the full NewerTech 11-piece kit. I have used mine more times than I care to count…
Other than the pentalobe screwdrivers on the new MacBook Airs (which are included with our Mercury Aura Pro Express upgrades) there hasn’t been an upgrade I’ve done recently or install that that 11-piece kit couldn’t handle.
Just a thought. :-)
Hey Chris….good to hear….but that Apple tech is DEAD wrong. Magnuson Moss Act….read all about it.
OWC Mike P. has a more eloquent way to state this….but you have the legal right to upgrade your machine….or any other product…eg. car….adding rims and tires to it…and burden of proof is on the manufacturer to show your modification negatively affected other components.
Aw man Chris….you could have gotten one of our toolkits and not had the hassle of going to Walgreens…check ’em out:
http://eshop.macsales.com/search/toolkit
Just for completeness… Those who did the early update got a different Boot Rom version?? If so, what is the version number of the ‘old code’??
Just wanted to report that my late-2008 aluminum MacBook already had the EFI update, and is now running fine with 8GB of memory.
I was a little worried at first; after installing 8GB the computer hung when booting, but I then discovered it was because of the 4GB chips wasn’t seated properly.
Thanks a lot for the tip. With my SSD, and now with 8GB, this old MacBook has a lot of life left in it!
Thanks so much! I was sure that there was no way I could have 8gb in my 15′ late 08′ mackbook pro 2.53ghz. I just did the upgrade and it works awesome…now I can run visio and project in my parallels vm and it’s as smooth as butta’…hella sweet, seriously you guys rock!
I am really excited about this development. When can we expect to see test results using the new 8gb configuration?
@ Roy
The 2.66GHz Models came out in March of 09 as a bump to the Late 08 line (I know, I have one of those). They are not affected by this update
Can anyone confirm whether the 2.66 GHz late 2008 macbook pros can utilise this to access 8GB?
care to take the newer MBP’s for a spin using 8gb modules? seems you havent certified these newer models yet.
Well hey there Tim!
Would love to take the new MBPs for a spin with 8GB modules….if we offered such. ;-)
We unfortunately can’t discuss product development until we are ready to ship….so stay tuned here for any developments in that area.
Thanks!
OWC Michael,
I’m confused aboutyour comment about the **17** inch 2008 NON-unibody macbookpros. When someone asked, you said “This particular issue affects only the models listed.” (which only lists 13 and 17 inch MB/MBP)
So, does that mean that the 17 inch 2008 macbook NON-unibody actually supports the 8gig kit… but just doesn’t require new firmware?
Or do you mean that 17 inch 2008 macbook NON-unibody does NOT support the 8gig kit?
Please clarify!!! Thanks!
Not sure why there is any confusion, this article is in reference to only the following Apple laptops bearing the model ID of MacBook5,1 or MacBookPro5,1
* MacBook 13.3″ 2.0GHz and 2.4GHz
* MacBook Pro 15″ 2.4GHz
* MacBook Pro 15″ 2.53GHz
* MacBook Pro 15″ 2.8GHz
None of which are 17″ models.
The MacBook Pro (17-inch Late 2008, 2.5GHz, 2.6GHz models) and the MacBook Pro (17-inch Early 2008, 2.5GHz, 2.6GHz models) bear the Model ID of MacBookPro4,1 and use DDR2 PC-5300 667Mhz memory. Incidentally, these machines have been MaxRAM certified to accept up to 6GB of OWC brand memory.
Model ID MacBookPro4,1 utilizes PC2-5300 DDR2 memory and is not affected by this update. OWC still does support up to 6.0GB of OWC memory in that machine.
The post states, “First, you want to make sure you have one of the affected models:”
I have the MacBook Pro 15″ 2.4GHz which is listed.
My Boot ROM version falls under, “Machines with other Model IDs are not affected and don’t need an update.” (I have a 4,1).
Am I right in my assumption that my system (running 10.6.6) will work as is with the 8GB. This one combination is confusing and didn’t seem clear cut to me. If it will work then you have another sale.
Thanks for the feedback and a great find
When OWC warrants supporting our memory in excess of the Apple factory supported amount of RAM, it will be listed on our OWC MaxRAM Memory Certification page. Please check that link if you are inquiring about additional machines not listed specifically in this post.
One key factor to keep in mind is that OWC Brand memory meets or exceeds Apple’s specifications. As such, we are not stating that all brands of memory are included in this discovery, simply that OWC RAM has been newly tested and certified to work.
That said, the links to both the compatible memory as well as the EFI updates can be found in the post. Most users will have already downloaded and updated to the latest version of the EFI Firmware prior to or along with the 10.6.6 update to OS X.
If you want to make sure you’re at the latest firmware update, download the EFI updater for your specific MacBook/MacBook Pro listed in the post and run the downloaded updater. If you receive the message that the updater cannot be installed on your machine, then you are already at or above the required firmware update needed to install your 8GB of OWC brand memory.
Excuse my ignorance, but can anyone tell me which memory is suitable to populate the slots on my MBP? Unfortunately Crucial tells me I can only use 4GB :(
OWC Grant: “We don’t have a machine without the EFI update at this point now to know what the other Boot ROM versions were.”
Strange that nobody has a machine with the first revision, the one before the “secret update”. And you just carelessly updated the machine without making a note of the old Boot ROM number?
Something’s not right here. I updated my machine with the 1.8 EFI update, yet I have the revision that was supposedly the result of the secret update.
It looks to me like either something went wrong with your testing right after the 1.8 update or the 10.6.6 update is the one that triggered the accessibility. But saying that Apple issued a “secret update” just doesn’t sound plausible to me.
I have a MacBook Pro 1.2 with two 1 g memory DIMMS, one in bank 0 and the other in bank 1. Is there a way to increase the RAM?
Can you please clarify if “MacBook Pro 15″ 2.4GHz (All)” also includes MacBookPro4,1 model (Intel Core 2 Duo 2.4 GHz)?
Thanks,
Mark
Has anyone compared the before and after differences?
I’m assuming the update changes the boot.efi…
I’d love to know where the differences are, as I’ve already got my MBP 3,1 booting 64-bit (with edited .efi) and have OWC 8GB DDR2 waiting :-)
Any tips welcome!
I have boot ROM MBP31.0070.B07 on my 2.4 gHz Core 2 Duo MacBook Pro (2008). When I try to run the EFI updater from the OWC blog it states that my MBP does not need it. Given the other numbers (B03, B05) am I even further along in the EFI updates?
Hello.
To sum up my actions.. I own a late 2008 MacBook Pro. Simply fired up a few VMware virtual machines and used them throughout the day. Also ran iometer to stress the SSD drive as well in the virtual machines. Memory went as low as 300 mb free. All I can say is that I did not experience any issues!
For those if you with reservations, go for it. What have you got to lose, OWC has a 30 return policy (I think).
Marvin
Thanks for the endorsement Marvin. And yes…30 day money back guarantee. See this link for complete warranty and guarantee details:
http://eshop.macsales.com/Service/warranty/owc-memory.cfm
If during the first 15 days, you are dissatisfied in any way, we will refund the original invoiced purchase price. During days 16-30, we will refund the lesser of the original purchase price or the current sale price.
I have an early 2009 (late 2008) aluminum MacBook 13″. I run parallels 6 on it, and my RAM is maxed out when doing so. I do have an SSD, so it’s not the end of the world for me, but updating my RAM so I’m not maxing out is something I’ve been wishing I could do. I’m so glad that I can do it now! I’m taking the plunge!! I’ll let you know how it goes!
So @OWC is the manual update needed or will the automatic update from before work?
Your blog says the manual update is required:
“The practical upshot of all this is that if you installed the EFI Update when it first came out, like we did, you would have gotten the old code, which meant your computer would only address 6GB properly. Those who didn’t upgrade until after Apple changed the updater got the newer firmware, which allowed proper addressing of 8GB.
Once we manually installed the “updated” version of the EFI Firmware in our test machines, they were able to address 8GB normally, without any crashing or slowdowns.”
Reading that it indicates that because I did the automatic update that it will not work as I have the older info despite the correct version number.
Hi Orin:
Need to clarify a few things here.
First, we were able to update the firmware even though it did not show in the software update – but when we manually downloaded the EFI
firmware update and tried it – it let us apply it. So that’s what’s meant by manually downloading and applying.
Even though software update did not say it needed to be applied, it did obviously. And again, these machines certainly did not run with 8GB in our first tests – after the application of the firmware, they DO work with 8GB.
And no, we unfortunately did not screenshot Apple System Profiler before and after.
Should also perhaps clear up that the update is REQUIRED. Many users may find their firmware is already updated to the revision they
need to run 8GB. So, besides 10.6.6, open up Apple System Profiler and examine the firmware revision – see what is installed
– and if you actually need to take any action at all.
I have a late 2008 Macbook unibody and it shipped with Leopard and I never upgraded.
Has anyone tried the 8GB max with Leopard (10.5.x) or is Snow Leopard (10.6.x) mandatory?
Hi Steve and thanks for stopping by. Yes…we tried with other “dot revisions”…the ONLY OS version we got the 8GB to work properly on was 10.6.6.
Not sure what others will find…but that’s what we’re supporting as compatible…10.6.6 and the EFI version update.
Also, make sure to update your shopping cart information and receipt so that it confirms the Late 2008 MBP models are included. It is not visible anywhere once you begin checking out, confirming the order and getting the receipt. Thanks!
Thanks for posting this guys. You must have been reading my mind because I was thinking last week… “I wish I could boost the ram in my MacBook Pro!” Right now it only has 4gb total.
So, I decided after reading the article on TUAW, then reading this blog to purchase the 8gb kit from OWC for my Late 2008 MacBook Pro 15″ 2.53 Core Duo model.
*Fingers crossed* that everything works just fine when I install it tomorrow!
I’d also like to know if there is any chance that this would work for the 2008 iMacs. I’ve currently got 6GB in mine, when only 4GB is officially supported. Would love to have 8!
I have a late 2008 with 8GB from some time now, I had the EFI applied when apple told me to long time ago, but after the 8GB upgrade it crashes most of the time when coming out from hibernation and Programs like Illustrator and Photoshop where open (memory hungry programs).
Beside that it works flawlessly.
Nice find guys! :) I have the same question as Chris (comment #19) though: if we’re certain that we have the older version of the EFI update, how can it be updated to the newer one?
Grant,
It looks like I have one of these models and can do the upgrade.
How would I test after the upgrade? Do you or Marvin have a step-by-step set of instructions? Do I just keep running apps until I see huge memory use? How can I exercise to prove that the dreaded slowdowns do not appear?
Thanks,
David
I bought the “4.0GB OWC PC8500 Module 204 pin w/6GB Model Qualification. Lifetime Warranty (OWC8566D6R3S4GB)” in late 2009 for my Macbook Pro which could only address 6Gb of memory at the time. My Macbook pro has the matching ROM version, so I’m just wondering if I can get the “4.0GB OWC PC8500 DDR3 SO DIMM 204pin 1066MHZ w/Lifetime Warranty (OWC8566DDR3S4GB)” to match my ram?
Note that the model numbers are slightly different.
Thanks
Order the 8GB kit on Saturday night, arrived Monday morning!! Works like a charm! Was a bit skeptical at first so ran a few tests that used over 7G of memory (rumors about the 6G memory limit scared me). Stable as can be!! Thank you OWC for the information.
Glad to hear that Marvin and thanks for the verification!
I have MacbookPro late 2008, and I want to put 2x 4GB 1333Mhz.
Do you think that will my MBP works nice with this 1333Mhz module (I know that will works on 1066Mhz), but I can’t find 2x4Gb 1066Mhz in my neighborhood.
I´m getting Kernel Panics with 8GB on my Macbook Pro 5.1 with the 1.8 Firmware.
I tried to reinstall the firmware update, but it doesn´t let me saying ” its not need on this system”
Please help, i really need 8GB :-)
greetz
Mike
Hi Mike and sorry to hear about the panics…but it’s not something we’ve experienced here. Make sure you are running 10.6.6 and that the RAM is compatible.
What are the Boot ROM versions for the early EFI Firmware updated machines that didn’t get the memory addressing fix (those you had installed before re-testing)?
Is it different from the ones mentioned above? I hope so, otherwise this post could mislead many.
Hi and thanks for stopping by. We don’t have a machine without the EFI update at this point now to know what the other Boot ROM versions were.
There are mixed reports. Some with the affected MBP and the correct ROM are still reporting lock ups when addressing more than 6GB of RAM…
This is a shame…
How much testing has OWC actually done using more than 4GB/6GB on these machines…?
I have the 2.53 Core2Duo model.
R.
Hi Richard…yes…this was tested VERY thoroughly…in fact…early testing before we did the EFI updated and the 10.6.6 update got same results of significant system slow down over 6GB.
We tested every 5,1 model ID MB/MBP with these updates applied and none had lockups, KP’s, slow downs, etc. We wouldn’t have reported on the successful results if they had ;-)
I understand that this article has been written as applicable to certain Macbook and MacbookPro models (the latter being what I have… and have now ordered the 8GB RAM upgrade kit). I was just wondering if any testing has been conducted on the late 2009 / early 2010 MacMini in regard to whether it would also have received a ‘secret’ Boot ROM update to allow it to take the 8GB upgrade. If so, I need to order another 8GB upgrade kit!
Hi Adrian…no…we haven’t tested that on the mac Mini to see if anything has changed…but in looking at the 8GB kit…looks like 2009-2010 minis are compatible with 8GB:
http://eshop.macsales.com/item/Other%20World%20Computing/8566DDR3S8GP/
I have a white iMac of 2006 that is limited to 3GB max RAM. It has a core2Duo 2.33Ghz processor. I wonder if by updating it to the latest EFI firmware, I can get it to work with more RAM. Any thoughts?
Anybody had any luck doing trying this on the MBP 15″ 2.66 GHz models?
BTW, if these models could all along address 8GB of RAM and the only thing they needed was an updated firmware, then Apple incurred in a disservice to all of us who use their computers, I guess just for the sake of pushing their newer models.
This is good news, but several questions linger on:
1. Will these 8GB of RAM work with Lion?
2. Will Apple try to correct their “mistake” and release a new firmware to block the use of 8GB of RAM in the models listed in the article?
3. Have you guys contacted Apple to confirm that they will allow the use of 8GB of RAM in the models listed?
Thanks.
Hi and thanks for your questions.
As an Apple Developer, we are not allowed to discuss aspects of any unreleased Apple product.
No idea what Apple will do current or future…unlikely though they would do a firmware updated just to block use of 8GB.
No reason to contact Apple to discuss maximum memory….our MaxRAM program has been doing such verification for years now: http://eshop.macsales.com/memory/maxram
@m3kw: @A Bobyn’s question is a fair one, I think. I’m in the same position with my MP Pro of having the right firmware revision in System Profiler but not knowing if it’s the “right” firmware to expand the memory addressing.
It seems clear in the post that there were two firmware updates, one of which enables the 8GB option without performance penalty and one which essentially brings no joy for us.
With no way to find out which firmware revision I’m running, I’ve decided to pull the trigger on the second 4GB upgrade and just try it and see. I also get the “Does not need this update” message for the firmware update on a replacement motherboard that shipped in April 2009 from Apple.
Excellent news!i was about to upgrade my nieces 5,1 to 6gb. 8gb will be awesome.
I do have a similar question to a previous comment… owc specifically mentions snow leopard 10.6.6. But what if we boot into bootcamp and windows? I suspect it will still work, correct? Would be nice to have extra RAM for running xp mode in windows 7 (virtual pc).
Thanks for the awesome discovery!
Slam dunkin like Shaquille O’Neal, if he wrote infotrmiave articles.
You mentioned other model IDs do not require this update. Were you referring to models start with 5,* or could it apply to 4,1 models too?
What about my 2008 3.06 27″ iMac? It would be nice to give it a boost
Well, I took the plunge. Bought 2x4GB sticks today and put them in. Consumed 7+ GB of RAM, and none of the molasses-style performance. Great find OWC.
Excellent work OWC. All my Mac RAM has come from you, certainly a trustworthy source.
Naturally of course I recently purchased 6GB for my late 2008 MBP 15 2.4GHz. Guess I’ll be using the RAM trade in program. I need 8GB for my late 2009 mini 2.66GHz so what the hell, time to buy more RAM!
I have all the required version numbers, when I try and install the firmware update I’m told this computer doesn’t require this update, exactly like the machine in the article. Since I’m diligent about updates, I’m sure I have the 6GB limit EFI. The authors of the article state:
Once we manually installed the “updated” version of the EFI Firmware in our test machines, they were able to address 8GB normally, without any crashing or slowdowns.
How do I *manually* install this firmware? I see the same question asked a few times and the response is always “You don’t need it”, but if this article is correct, then there are TWO versions of this firmware and while my MBP tells me I don’t need it, it’s quite likely I have the first version of this firmware and would need to overwrite it with the “new” firmware of the same version number.
Advice anyone?
I have this system:
Model Identifier: MacBookPro5,1
Boot ROM Version: MBP51.007E.B05
Do i need to flash with this?
MacBook Pro EFI Firmware Update 1.8
OR just to buy 2x4GB ram?
thanks..
Hey guys,
This is great news and more RAM sure comes handy. Would you suggest a RAM upgrade or a SSD one?
I currently have an Unibody 15″ MBP (late 2008), 4GB RAM and 500GB Hybrid Drive.
I’m getting “Alert – This computer does not need this update.” while launching the Update 1.4 on my MacBook 13.3″ 2.0GHz with Boot ROM Version: MB51.007D.B03. No option to ignore and continue it just doesn’t let me run the package. Anyone with the same problem or a solution?
Thanks!
Very Good News!
I am running Mac OS X Lion (Developer’s Preview)
Is it going to work on me?I have the properly Boot ROM Version.
Wow, guys. Great find. This’ll be a cheap update to give my MacBook another year or more of life.
I wonder how this affects Windows 7 or Xp under boot camp?!?! Anyone?
So if I have a 2.13 Ghz MacBook (5,2) and have Boot ROM Version MB52.0088.B06, can I install 8 Gigs and have full use of it on my system running Snow Leopard??
@A Bobyn wow, please learn to read the blog properly, the version you have is the required version! MBP51.007E.B05 will work.
@David Lein If you have the required version MBP51.007E.B05 or MBP51.007D.B03 for model Macbook 5,1 you don’t need to update as it is already the version you need!
Just install your 8 gig ram and BOOM. I just ordered mine when this news came out! I’m getting the G.SKILL 4GB DDR3 1066 (PC3 8500) Memory for Apple Model FA-8500CL7S-4GBSQ
I hope it pairs up with the 4gig i already have it’s the F3-8500CL7S-4GBSQ. The difference is FA and F3 in the model numbers.
So, meeting all the requirements listed with the OS version, model MacBook Pro, and boot ROM version, I get a fail when I try to apply the “new” version–“This computer does not need this update”, and can only close. What am I doing wrong?
What if your Macbook is running a later version of the boot ROM? ie:
has a Model ID of MacBook5,1
has a Boot ROM version of MBP51.007E.B05 (not MB51.007D.B03)
is running Mac OS X 10.6.6 or later
will it still be able to address the full 8GB?, or would one need to downgrade (if possible) Boot ROM to MB51.007D.B03?
This is a remarkable development and all but demands some more research and details for those of us who aren’t quite ready to upgrade.
I’ve got a BTO 2.8 ghz model that had its motherboard replaced in May 2009. It’s never been able to accept that update, so I suspect that Apple may have sent an upgraded motherboard as a replacement.
8GB is important enough to me for me to consider pulling the trigger on the upgrade anyway, but I’m wondering if it’s likely to work.
So if I have a MacBook5,1 with the boot ROM version mentionned above, I CAN buy your 8 GB upgrade kit?
If your MacBook:
you should be able to address the full 8GB
And to extend this explanation…..you can address that 8GB and enjoy full system performance without the previously found significant system slow down 8GB presented before this EFI update. That’s why up until today, we only supported 6GB for these models.
I see my 2008 17″ MacBook Pro is conspicuously absent. Any chance there is a similar update for it?
This particular issue affects only the models listed.
While it wouldn’t be a bad idea to make sure you have the latest EFI Firmware installed, for compatibility’s sake, it is doubtful that it’s going to make the kind of change we’ve seen here.
You can find the latest version of this firmware at the “Check Boot ROM version” link above – lower on the page is a list of the latest versions each model can take.
Very good to know. Hopefully the new 2011 MBPs get a similar update for 16GB when the 8GB DIMMS are more widely available. :)