Hey there Supermacs list, Gosh it's been a while since I last posted here, I've been extremely busy with a huge company project. I just this weekend had some time to play with my good 'ole C600. I got some new RAM modules that I installed and I am having a very weird time with them.
I first installed one DIMM and that started up fine and tested without errors on Gauge Pro's memory test for over 1000 iterations. I then installed the other module and that started the computer fine and I was working without errors for about 20-30 minutes. I then switched to booting off of another boot partition running the exact same OS version but with a base extension set and got first a bus error the first time then an addressing error. Okay.... so I removed the last installed module and tried booting from that same partition. No error but it just froze booting up. I then tried booting off of a OS 9.0.4 install CD and that froze the same way while booting. So I started up with extensions off and was able to boot both from the install CD and the second partition while extensions were off. I tested a bunch of extensions and it seemed that by disabling the iomega extension installed by OS 9, I was able to boot. Weird, because I was always able to boot from that partition with the extension set unmodified fine before installing that new RAM. I switched from there back to booting from the first partition that had no problems booting with either of the new modules installed, and that booted again fine without any errors. I then, just to further test, shutdown and installed that last module that wasn't working and tried booting. Remarkably it booted fine. I then tested it with Gauge Pro and it failed after 33 passes with the following error: Memory error @ $02E24D88 Expected $D003FE95 but received $D000FE95 I then let it continue and got another similar error at another memory address during the 43rd iteration and another after the 55th iteration. So that told me there was a problem with that second module. I removed the second module again and tested the first and that tested without errors but then I removed the first module and tested the second module. It booted without error and tested in Gauge Pro for over 1000 iterations without errors as well. So I switched that same module to the other bank and tested it. That too tested without errors. Then I removed that DIMM and tested the first working module in both banks. Again, that worked without errors for over 1000 iterations in Gauge Pro in each bank. I then installed both DIMMS again and was able to boot but with errors detected early after only a few iterations by Gauge Pro. Tried again booting from that second partition and got address error every time. Quite obviously there is a fault somewhere in the RAM modules as I have never gotten this sort of behavior before. I left it out in the description above, but each time I reset the PRAM and also reset the CUDA switch a couple times in between making changes to the position and installation of the DIMMs. I have also removed all PCI cards from the machine as well. For the life of me I cannot understand why this is happening this way. Any suggestions? Regards, Seth ----- "My girlfriend always laughs during sex --- no matter what she's reading." -- Steve Jobs (Founder, Apple Computers) -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
