Kernal Panic attacks - please help

Question

For the pas couple of weeks my G4 (Quicksilver) has been having kernal panic attacks. This problem does not happen all the time, but seems to happen more after the computer has been asleep from the time I go to bed till I get back from work. It wakes up fine, and about 3 minutes after it waking up there is a panic attack. It will then take me 3-4 restarts to get back up and running, then everything works fine. I have run the hardware test, applejack (a couple of times), and a couple other, along with removing the memmory and trying each one, and it still happens. Tomorrow I will be purchasing new memmory and will try and swap it out, both of my 512MB RAM sticks did the same thing when I restarted.
Here is the the latest info from the panic log.
panic(cpu 1 caller 0x000A8A00): Uncorrectable machine check: pc = 0000000090003AE0, msr = 000000004200F030, dsisr = 42000000, dar = 0000000002063000
AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000
L2FIR = 0000000000000000, BusFir = 0000000000000000
Latest stack backtrace for cpu 1:
Backtrace:
0x000952D8 0x000957F0 0x00026898 0x000A8A00 0x000A8148 0x000AB980
Proceeding back via exception chain:
Exception state (sv=0x2D4B1000)
PC=0x90003AE0; MSR=0x4200F030; DAR=0x02063000; DSISR=0x42000000; LR=0x90003AC8; R1=0xBFFFE4E0; XCP=0x00000008 (0x200 - Machine check)
Any help would be greatly appreciated. I beileve the only thing left is I believe it to install new RAM and to reinstall the OS.

Answer 1

Once the computer gets up and running, it can go to
sleep for a couple of minutes and it will wake up
sometimes ok. If I restart the computer once it has
been warmed up it seems to work ok, I have only had a
couple of times where it did not like the restart.
Yeah, that sounds similar.
Does this mean that it could be a processor issue -
that the processor has to be warmed up before it will
work correctly?
We never did figure out what the underlying problem was. These were Avid edit suites and when the problem showed up, the computers were just so old we decided to replace them (I wasn't paying for them myself). I nursed one through the political conventions in 2000 by putting it on a UPS (and crossing my fingers a lot) just to make sure it never got turned off. But that was just because I didn't have enough time to set up a new computer at that time.
I am just running out of ideas on
what to do, and I really need this computer to work
for a while longer.
My suggestion is to see if you can just keep it running all the time for as long as it's got left. It's almost certainly going to be cheaper to pay for the electricity than to have it fixed. If you have to take it down for an extended period of time, just try to plan ahead if you can for a period of downtime where you coax it back to life.
It could be any component, maybe the CPU, but also the clock chip that's running the whole system drifting off frequency.
charlie