[G4] Memory Cache Problem 400 Mhz Sawtooth

[Wilkin, Wayne (Mass)]

How many ram chips do you have installed? If more than 1 you can try to
remove 1 at a time restarting each time to see which chip it is, Wayne.

> ----------
> From: 	lpersing at acsworld.net
> Reply To: 	Power Macintosh G4 List
> Sent: 	Thursday, September 25, 2003 10:25 AM
> To: 	Power Macintosh G4 List
> Subject: 	[G4] Memory Cache Problem 400 Mhz Sawtooth
> 
> G4 400 mhz AGP Sawtooth running OS 9.1
> 
> I think I've got big problems.  This morning when trying to reboot my 
> computer after a crash, my boyfriend discovered this message on boot. 
> "Apple's built-in memory test has discovered a problem with memory 
> cache.  Please contact an Apple Service Technician."  It then 
> proceeds to boot, I get my desktop, but then I get the message that 
> the finder has unexpectedly quit and I should restart.  If I click 
> restart, it goes into a finder loop again.  So I have to hit the 
> button on the front of the machine.  And the whole flippin mess 
> starts all over again.
> 
> So I tried a few things. Booting with extensions off, booting from a 
> Tech Tool CD (it won't boot from any cd).  With extensions off, I got 
> the same error message but it stayed running long enough for me to 
> trash a bunch of system and finder prefs.  That didn't help.  I also 
> ran the ROM (?) checker in Tech Tool and my L2 cache was not being 
> recognized.
> 
> So, then I shut it all down and opened it up, and blew the dust out 
> with some canned air.  I re-seated my RAM (which probably makes no 
> difference at all since the problem is not with my RAM).  I hit the 
> cuda button and started it up again.  I got the same message so I hit 
> restart and this time it booted correctly and in Apple System 
> Profiler my L2 cache is now recognized and it seems to be working ok. 
> I'm guessing that I'm on borrowed time with this motherboard though.
> 
> Anyone else experience this?  Am I going to have to shell out bucks 
> for a new computer?  Figures, the trusty ol' 6500 that I wanted to 
> replace soon is still running like a charm.
> 
> I'm headed out of here today for a mini vacation in NH, so may not 
> check back in until Tuesday for advice.  Any advice anyone has would 
> be appreciated.  Really dreading shelling out the bucks for a new 
> machine.  Maybe just a new motherboard?
> 
> Thanks,
> 
> Lynn
> 
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