Safe Boot |
April, 10, 2003 7:54 PM |
jimgwalsh |
. Hi,I am using a PM9600 XLR8G4/450, PowerDomain 29160N SCSI with a 36.7 GB IBM7362X Formatted with HD Speedtools 3 partitions 4GB OS9.1, 4GB 9,2,2, 27+GB OX10.2.4., ATI 7000 video card and 12x128 non/edo memory. Install went fine BUT it will only run with out crashing in "SAFE BOOT" Still cannot figuar this out.If I reboot it freezes when I try to run an application or it freeze at "loading IP firewall extension" My QUESTIONS are: If the machine runs fine in "SAFEBOOT" does this eliminate the possibility of memory problems? also SCSI problems? and upgrade problems? Does L2CacheConfig cause crashes? Thanks in advance,any info appreciated! Jim |
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RE: Safe Boot |
May, 05, 2003 9:32 PM |
kbata |
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It's hard to see how removing the Powerlogic L2 Cache control would cause a problem with Safe Boot unless you crashed and got some disk damage. "A Safe Boot is a special way to start Mac OS X when troubleshooting. Safe Mode is the state Mac OS X is in after a Safe Boot. Starting up into Safe Mode does three things to simplify the startup and operation of your computer: It forces a directory check of the startup (boot) volume. It loads only required kernel extensions (some of the items in /System/Library/ Extensions). It runs only Apple-installed startup items (some of the items in /Library/Startup Items and /System/Library/Startup items - and different than login items)." |
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RE: Safe Boot |
May, 05, 2003 3:11 PM |
marcush |
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I had this problem with my XLR8 G4/450 about a year ago now. I had to deinterleave my RAM to stabilize the machine. I have a Power Tower Pro 225 with 1GB of RAM. Obviously deinterleaving meant that I could not have the full 1GB. I replaced two of my 128MB RAM cards with 64's from my Power Center Pro and mixed them up so that none were interleaved. I eventually found a workaround on xlr8yourmac.com's CPU upgrade's database. What I had to do was reinstall the Power Computing L2 cache. This also allowed me to reinterleave my RAM so I went back to 1GB from 768MB. I don't know for sure why this worked. Mike Breeden speculated that the cache was buffering the memory bus between the processor and RAM and that it solved a timing issue. By August last year the Sonnet G4/800's were released and I got one as soon as they were available. I was able to drop the Sonnet card in after removing the L2 cache and have had no memory related problems since. The card not only solved the six-slot issue but works flawlessly with interleaved RAM. What this experience indicated to me is that the xlr8 cards have trouble with interleaved RAM and may be more sensitive to RAM issues in general. Since you have a 9600 you might try reinstalling your L2 cache to see what happens. I know it is counterintuitive to what we know should be done with an L2 but it might work for you also. |
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RE: Safe Boot |
May, 05, 2003 2:22 PM |
mjoecups358 |
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Safe mode does not mean every thing is hunky dory with your hardware setup. Since the cache enabler will push all timings closer to the edge of failure, your ram could still be marginal. I would try clocking the G4 down a tick if that's possible. I run my Powerlogix G4/450 at 420Mhz on a 52.5Mhz bus for maximum stability. At 450 I experienced some panics. Marty |
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RE: Safe Boot |
May, 05, 2003 1:32 PM |
jimgwalsh |
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MACh Speed Control - Jaguar We are entering final beta and you are welcome to test. This advanced cache enabler is an active cache/cpu tester that provides full performance in Classic mode as well. The final version will be for sale within the next 30 days. We'll provide discounts for qualified beta test results (system, apps, tests, results) To use the beta, please download the package here. http://daystartechnology.com/XMSCJAG_b1.sit The temporary serial number is: TMP-BV2Q-RF96-S2J4 |
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RE: Safe Boot |
May, 05, 2003 11:12 AM |
joevt |
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XLR8 MACh Speed Control doesn't work in Jaguar. Are you saying you have a beta version that does or are you talking about the OS 9 version? |
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RE: Safe Boot - Thanks kbata |
May, 04, 2003 10:43 PM |
jimgwalsh |
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Before I reinstalled Jaguar I removed the L2CacheConfig, then system crashed even when I tried SafeBoot. I am now trying to use a Beta version of XLR8 MACh Speed Control. System still crashes at start-up when not in "SafeBoot" Is it safe to assume that this not a memory problem? |
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RE: Safe Boot |
May, 04, 2003 10:28 PM |
jimgwalsh |
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A Safe Boot is a special way to start Mac OS X when troubleshooting. Safe Mode is the state Mac OS X is in after a Safe Boot. Starting up into Safe Mode does three things to simplify the startup and operation of your computer: * It forces a directory check of the startup (boot) volume. * It loads only required kernel extensions (some of the items in /System/Library/Extensions). * It runs only Apple-installed startup items (some of the items in /Library/Startup Items and /System/Library/Startup items - and different than login items). Taken together, these changes can work around issues caused by software or directory damage on the startup volume. To start up into Safe Mode (to Safe Boot), do this: 1. Be sure the computer is shut down. 2. Press the power button. 3. Immediately after you hear the startup tone, press and hold the Shift key. Note: The Shift key should be held as soon as possible after the startup tone but not before. 4. Release the Shift key when you see the gray Apple and progress indicator (looks like a spinning gear). During the startup, you will see "Safe Boot" on the Mac OS X startup screen (Figure 1). To leave Safe Mode, restart the computer normally, without holding any keys during startup. o Safe Boot forces a directory check of the hard drive. This is identical to using Disk Utility's Repair Disk or the fsck -fy terminal command. o The cache of kernel extensions used to speed startup is ignored. (The cache file is /System/Library/Extensions.kextcache ) |
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RE: Safe Boot |
May, 04, 2003 7:30 PM |
kbata |
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I would think that being able to boot into safeboot mode would point toward some kind of a software problem. The L2 configuration would be the first place I would look. If it is set for too fast a speed it would crash the computer. While you are in safeboot reconfigure the cache. If the computer runs fine with the cache disabled try setting the backside speed slower. If it still crashes with the L2 disabled try creating a new user. Creating a new user would give you fresh preferences. Corrupt preference files happen in X just like they did in 9. |
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RE: Safe Boot |
May, 04, 2003 1:06 AM |
tempest |
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"Safeboot"--what's this, single-user mode? If you mean single user mode, no, it won't eliminate the possibility. Boot in verbose mode to see if you get more info. If it just hangs w/out any more diagnostics, you'll have to make your system as simple as possible and try rebooting to see if your problems go away. No way around that--just the way it is. |
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Safe Boot....... Anybody out there? |
May, 03, 2003 9:03 PM |
jimgwalsh |
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My QUESTIONS are: If the machine runs fine in "SAFEBOOT" does this eliminate the possibility of memory problems? also SCSI problems? and upgrade problems? Help PLEASE! Thanks in advance. Jim |
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RE: Safe Boot |
April, 12, 2003 10:02 PM |
alan |
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One more thought - do you have the correct cache value setup for your card? Running in safe mode turns off all extensions (I think), so a L2cacheconfig problem would not show up in safe mode... |
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RE: Safe Boot |
April, 12, 2003 10:00 PM |
alan |
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I have a similar config - an 8600 with a newertech G3/500, 512M, 29160N and IBM 36.7G formatted with Speed tools (all one partition), and Radeon 7000. I have run OS X since 10.1.3, and sucessfully upgraded each time up to 10.2.5. My OS 9 system is patched to 9.22. Maybe the G4 card is the difference? I don't have any boot problems. I used Ryan's L2Cache config for a long time, but then switched to the sonnet extension because it loads faster, and gives much improved boot time. I swear my 8600 boots OS X faster than my Powerbook G4/867 Have you tried running WITHOUT L2Cache config just as a test? The speed will be much slower, but at least you will know if that is the problem. If that works, I would try the sonnet extension... Changing the extensions is pretty easy, so that is where I would start... |
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Safe Boot - Can anyone answer these questions? |
April, 12, 2003 12:18 PM |
jimgwalsh |
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If the machine runs fine in "SAFEBOOT" does this eliminate the possibility of memory problems? also SCSI problems? and upgrade problems? Does L2CacheConfig cause crashes? |
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