Thunderbird machine_check_exception errors

Wes Newell Wrote:
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)
Need good help? Provide all system info with question.
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm


Cleaned out the dust from the heatsink, took the fan off and did a good
job on the fins, did not remove heatsink. Don't know the brand/model of
heatsink or fan. I have an IR gun, reads max of about 48C on fins.
Installed MotherBoard Monitor 5. It's a hot day, right at the moment
it reads 37 case temp, 71 CPU. Has a sensor 3 showing on dashboard,
but I can't figure out what that is for...reads 26.

Only other thing on dashboard that isn't in the green is the Core 1
voltage, says 0.21 V and is very far below the green. Core 0 voltage
says 1.78, slightly low but still in the green. What is correct Core 1
Volts? Can I change it?


--
steve

On Sat, 16 Jul 2005 21:11:27 +0100, steve wrote:

Wes Newell Wrote:
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.

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.

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?

Cleaned out the dust from the heatsink, took the fan off and did a good
job on the fins, did not remove heatsink. Don't know the brand/model of
heatsink or fan. I have an IR gun, reads max of about 48C on fins.
Installed MotherBoard Monitor 5. It's a hot day, right at the moment it
reads 37 case temp, 71 CPU. Has a sensor 3 showing on dashboard, but I
can't figure out what that is for...reads 26.

Assuming the readings are correct, that's 36C difference, which is way too
much. Remove the cooler and check the thermal paste and reinstall. Go here
and see if you can determine the cooler you have. It's probably an older
model or the stock AMD cooler which sucks.

http://www.dansdata.com/coolercomp.htm

Only other thing on dashboard that isn't in the green is the Core 1
voltage, says 0.21 V and is very far below the green. Core 0 voltage
says 1.78, slightly low but still in the green. What is correct Core 1
Volts? Can I change it?

You don't have a core 1. That would be for a second CPU. Your CPU voltage
(core 0) is correct, 1.75v for the tbird core.

--
KT133 MB, CPU @2400MHz (24x100): SIS755 MB CPU @2330MHz (10x233)
Need good help? Provide all system info with question.
My server http://wesnewell.no-ip.com/cpu.php
Verizon server http://mysite.verizon.net/res0exft/cpu.htm