Thunderbird machine_check_exception errors

Have a Thunderbird 850, 128M Ram, GA-7ZX motherboard with VIA KT133
chipset.

Was running Win98 and had a lot of problems with system spontaneously
rebooting itself. Thought it was spyware which system was infested with
so
bought WD 80Gig HD and installed Win XP Pro.

Still reboots itself, and often get Machine_check_exceptions. Error
report
says STOP: 0X0000009C (0X00000004, 0x00000000, 0x2000000, 0x00020151)

Don't think it's heat, BIOS says processor 30 deg. C, system 70 deg.
C.
Heatsink is clean (was dusty a while back while on Win98, cleaning
didn't
help.

Ran MEMTEST for 9 hours, no errors found.

Reboot problem seems to come when using system more, graphics, games,
ect. but not always. Often machine check error comes when logging in as
a user.

Any ideas? What do the codes mean?


--
steve

On Sun, 10 Jul 2005 02:12:01 +0100, steve wrote:

Have a Thunderbird 850, 128M Ram, GA-7ZX motherboard with VIA KT133
chipset.

Was running Win98 and had a lot of problems with system spontaneously
rebooting itself. Thought it was spyware which system was infested with
so bought WD 80Gig HD and installed Win XP Pro.

Still reboots itself, and often get Machine_check_exceptions. Error
report says STOP: 0X0000009C (0X00000004, 0x00000000, 0x2000000,
0x00020151)

Don't think it's heat, BIOS says processor 30 deg. C, system 70 deg. C.
Heatsink is clean (was dusty a while back while on Win98, cleaning
didn't help.

Ran MEMTEST for 9 hours, no errors found.

Reboot problem seems to come when using system more, graphics, games,
ect. but not always. Often machine check error comes when logging in as
a user.

Any ideas? What do the codes mean?

Sounds like a power problem or possibly overheating. For power, check for
bulging or leaking caps on the MB, a weak PSU, or possible local AC power
drops. There's no way the system temp can be 70C so i suspect it's either
totally wrong, or you have read them backwards with the cpu temp being 70C
which is still very high. Take the side cover off and monitor temps to
determine whats what. Normal cpu temp for that cpu should be no more than
60C max with a lousy cooler. A decent cpu cooler should keep it under 50C
for sure. You didn't mention what cooler you had and thatwould have helped
in determining possible problems. Case fans? When you cleaned the cooler,
did you remove it and reapply thermal paste?

--
KT133 MB, CPU @2400MHz (24x100): SIS755 MB CPU @2330MHz (10x233)
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