12.0GB OWC Memory Upgrade Kit
3 x 4.0GB PC8500 DDR3 ECC 1066MHz 240 Pin
Product Specs:
OWC Memory for Mac Pro Quad Xeon fully meets Apple's specifications with special attention to proper thermal specifications.
From the purchase date of qualifying memory from OWC, you have 60 days to trade-in your old memory for a cash rebate!
Just fill out
OWC's online rebate form or contact
OWC Customer Service after you receive and install your new memory.
*About the Apple Specified Thermal Sensor:
Ensuring maximum performance, reliability, and operational feedback -this DDR3 ECC Modules for the Apple Mac Pro 'Nehalem' 4 Core/8-Core and
'Westmere' 6-Core/8-Core processor models feature utilization of Apple qualified components including the inclusion of the Apple qualified Thermal Sensor EEPROM.
Please Note:
Memory modules may differ in appearance from those pictured.
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.4GHz
Mac Pro (Mid 2010 Quad-Core)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz, 3.33GHz
Mac Pro (Early 2009 8-Core)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
Mac Pro (Early 2009 Quad-Core)
(March, 2009)
Model ID: MacPro4,1
2.66GHz, 2.93GHz, 3.33GHz
Xserve 8-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz, 2.66GHz, 2.93GHz
Xserve Quad-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz
PC Desktops
Compatible with Intel / AMD Process based PCs capable with
the specifications listed above. Memory complies with JEDEC
Specifications, document JESD79-3B.
Customer Ratings
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4.9 / 5
24 out of 25 (96%) reviewers would recommend this product
Verified Buyer
Reviewer: Jon22
Age: 25-34
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Smooth Upgrade - One Catch
December 12, 2018
Order shipped fast and was correct. One catch is these 16GB modules can not be mixed with disparate size modules so I couldn't use existing RAM. My bad as it was listed on the site but I did not see it the first time around. Machine wouldn't boot. I removed the 4x2GB DIMM's and everything worked fine. Live and learn. Also want to Thank OWC for great customer service. When I came back to see what the issue may be with my system I noticed a $30 drop in the memory I had purchased. I called the next day and they price adjusted my order no questrions asked. Am writing this review while returning for another purchase. Highly recommended. I would recommend this item to a friend! This review is from 64.0GB Mac Pro Early 2009 Memory Matched Set (4x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: wakeupscreaming
Rating: 5/5
Works great for Mac Pro Six Core Mid-2010 Westmere
October 4, 2018
I bought a matched set (2x8GB) for my Mac Pro Mid 2010 3.46 GHz 6 Six Core Westmere. I've had the RAM now for more than a year with no issues. I have a total of 20GBs RAM, with 2x2GB in the other 2 slots.
I tried to find information on the maximum RAM for this Mac Pro model, and it's a little confusing. It's either 32GB or 48GB?
I would recommend this item to a friend! This review is from 16.0GB Mac Pro / Xserve 2009 Memory Matched Set (2x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Response from MacSales.com, Call Center
October 9, 2018
Hello! The maximum RAM for the 6-core MacPro would be 48GB using 3x16GB sticks!
Verified Buyer
Reviewer: IAmTheWind
Location: Boulder, CO
Age: Over 65
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Gave my 2010 Mac Pro a new lease on life
May 21, 2018
My original 10GB of memory was fine for several years but with the onset of processing large files such as RAW images, my beloved mid-2010 Mac Pro had been suffering. The OS X Memory Cleaner app had been indicating up to 99% of used memory and the machine was crawling.
The installation of 32GB of OWC memory speeded up operation of my computer remarkably and Memory Cleaner now usually shows only 30-40% used memory.
I've been a happy OWC customer since 2006 and I'm thinking that my next purchase is likely to be an additional 32GB of memory.
Thanks for the new lease on life, OWC!
I would recommend this item to a friend! This review is from 32.0GB Mac Pro / Xserve 2009 Memory Matched Set (2x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: CreativeDude
Location: Paris, France
Age: 35-44
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Awesome
January 4, 2018
My mid-2010 8-core Mac Pro is an audio / video production tool so the 12Gb of RAM it came with were bottlenecking the speed of some tasks. Ordering 64 Gb from OWC was the best decision ever ! The whole experience from ordering to delivery and installing was flawless !
I now have a brand new computer, unexpected for a 7 year-old computer.
I would recommend this item to a friend! This review is from 64.0GB Mac Pro Early 2009 Memory Matched Set (4x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer Top 250 Contributor
Reviewer: 377Ohm
Location: Lausanne, Switzerland
Age: 45-54
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Excellent RAM product at a very affordable price
December 16, 2017
I have been using this RAM upgrade for over a month in my 2010-vintage Mac Pro, both under macOS 10.12.6 and Win 7. I have experienced no problems whatsoever. In short, this a no-hassle, quality RAM upgrade at a modest, very affordable price. I wholeheartedly recommend the product to all whose "cheese grater" Mac Pro keeps running strong and can benefit from more RAM. I would recommend this item to a friend! This review is from 128.0GB Mac Pro Early 2009 Memory Matched Set (8x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: PhntmRob
Location: NY
Age: 55-65
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
Upgraded 2010 Mac Tower with RAM from MacSales
September 22, 2017
I have an Mid 2010 Mac Pro tower and wanted to upgrade the RAM. Now have 24G Ram in my machine and it really made a difference speed. I would recommend this item to a friend! This review is from 16.0GB Mac Pro / Xserve 2009 Memory Matched Set (2x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: bizpat
Location: nc
Age: Over 65
Experience Level: Power User
Owned Product: less than a month
Rating: 5/5
From 8 to 32BG
September 4, 2017
I boosted my older 2009 Mac Pro from 8 to 32 with these 4 sticks. A local store said I couldn't do that but it worked just fine. I had to upgrade because I had added a second monitor to my system and it was pulling too much memory and causing slow web loading. Easy peasy to install. I would recommend this item to a friend! This review is from 32.0GB Mac Pro Early 2009 Memory Matched Set (4x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: MacProlate2009
Location: Indianapolis, IN
Age: 45-54
Experience Level: Home User
Owned Product: less than a month
Rating: 5/5
Works like a charm
July 16, 2017
I probably got more RAM than I will ever need, but then we always say that and then want more a few years later as technology advances. in any event this really sped up my aging Mac Pro for loading and multitasking. I was a little incredulous that it would make this much difference in an old machine - but it i did. I have not had this installed long, so I cannot comment on the durability of this product. I would recommend this item to a friend! This review is from 128.0GB Mac Pro Early 2009 Memory Matched Set (8x 16GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: DesignsByJonathan
Location: SW FL
Age: 45-54
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Superfast 64 GB RAM upgrade
June 6, 2017
Superfast 64 GB RAM upgrade on a Mac Pro 4,1 tower. Fast delivery, great price, like new machine handles video even better now. User error on install (RAM was not firmly seated correctly by me) and MacSales talked me through it. Highly recommended!
THANKS!
I would recommend this item to a friend! This review is from 64.0GB Mac Pro Early 2009 Memory Matched Set (8x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer
Reviewer: MAC24X7
Location: El Dorado Hills, CA
Age: Over 65
Owned Product: less than a month
Rating: 5/5
Always Dependable
June 4, 2017
A client has an older Mac Pro quad-core tower server working flawlessly since new. I upgraded the RAM to the max of 16, up from the 6GB it shipped with. Also replaced the enterprise drives with SSDs. In a FileMaker server role, it is spectacular, serving up 8 million records. OWC always comes through. Been doing business with them forever. This review is from 4.0GB DDR3 ECC PC8500 1066MHz SDRAM ECC for Mac Pro & Xserve 'Nehalem' models.
Customer Videos:
Verified Buyer
Reviewer: JackRecorder
Location: Rhode Island
Age: Over 65
Experience Level: Power User
Owned Product: 1-3 months
Rating: 5/5
Always delivers as expected!
April 12, 2017
Hard to write a review on a product that works when installed and just keeps on working! Always pleased with anything from MacSales and encourage colleagues to shop there! Dependable to the max! I would recommend this item to a friend! This review is from 32.0GB Mac Pro Early 2009 Memory Matched Set (4x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
Verified Buyer Top 250 Contributor
Reviewer: Bigdrum
Location: Chicago
Age: 55-65
Experience Level: Power User
Owned Product: 5-6 months
Rating: 5/5
16.0GB Mac Pro / Xserve 2009 Memory Matched Set adds to your Mac!
April 5, 2017
My 16.0GB Mac Pro / Xserve 2009 Memory Matched Set helps my Mac run better! Great deal and a great price to keep your Mac running smooth! I would recommend this item to a friend! This review is from 16.0GB Mac Pro / Xserve 2009 Memory Matched Set (2x 8GB) PC-8500 1066MHz DDR3 ECC SDRAM Modules.
Customer Videos:
