> If I turn off mprime (v20), the problem goes away -- the computer
> doesn't reboot, at least not the 36 hours I tested. After I start
> mprime, it reboots in just a couple of minutes now.
>
> mprime doesn't run as root, the machine has run mprime stably since I
> got it (about a year) and the machine (an Athlon 800, running on an
Abit
> KA7-100 mainboard) is not overclocked. Does anybody know what's going
on
> here? Like I said, it's been going fine on the same exponent for quite
a
> while now, but suddenly, it just feels like rebooting (no error
message
> or anything, the screen just goes blank and suddenly it's in the
BIOS).
> The voltage meters in the BIOS screen look OK, and there should be
more
> than enough power for the PC...
>
> Strange... Any ideas?

I also had a KA7 with an athlon 750.  I had the exact same problem as
you seem to have.  For me, it only rebooted while running video editing
software (on windows).  The problem got worse and worse until it just
died a couple of days ago.  I took out the motherboard and noticed that
some of the electrical components (the ones right in front of the
processor) were all scorched and leaking some black residue.  I think
those components are the voltage regulator for the processor.  Right
before it died completely, it would only last a few seconds after being
turned on.  I turned it on and went into the bios's "PC-health" section
just in time to see the processor voltage drop steadily to about 1.6v.
Then the screen went blank.

It might not be the same problem you are having, but it sounds similar.
You might want to check those capacitors (i think...) in front of the
processor.  Maybe they are overheating?  Or, I've heard that KA7's had a
voltage issue with some graphics cards.  Maybe it's related...  Either
way, I've ordered a SOYO board for a replacement.

Michael LeBlanc

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