PC Dies seconds after boot

July 26, 2009 at 15:39:17
Specs: Windows Vista, 3.2GHZ P4/512RAM
Hey everyone,

I've got a older workhorse PC that's dieing and
I can't for the life of me
figure out why. Here's the breakdown.

It shuts of seconds after I turn it on. No matter
what I do, if I got into
the bios it dies IN the bios.

3.2 GHZ P4

380W ANTEC Truepower PSU (CHECKED -
Switched it with another,
works fine)

ASUS P5GD1 Board

One stick of 512 RAM - checked, works fine.

I don't even have a HD plugged in right now.
I've stripped it down to
almost nothing. The PSU is definitely fine, I
tried it on another PC and
tried another PSU in the machine, and I still
get the same problem.
The Ram I've checked, it's fine. That leaves the
CPU and Mobo as far
as I can tell. The two things I can think of are -
CPU over heating (but
I can't figure out why this would be the case,
it's got a giant
coolermaster fan cranking way to much air
onto it, should be plenty
to keep it cool) OR bios problem, but again, it
loads the bios just fine
and then crashed about the same number of
seconds in (5-7seconds)
whether I am in the bios or not.

Any help would be MUCH appreciated.

Thanks in advance,


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July 26, 2009 at 18:42:26
The size of fan on the CPU heatsink makes very little difference if there is a poor thermal contact between the heatsink & CPU.

Get a tube of thermal grease. Remove the heatsink. Clean off the old grease/thermal pad using isopropyl alcohol. Make sure you clean both the CPU and Heatsink.

Apply a new small amount ( about size of rice grain ) of grease.
Refit heatsink. See if it will boot up

Goin' Fishin' (Some day)

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July 26, 2009 at 19:33:49
I agree with Richard. It sure sounds like a CPU overheating.

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July 26, 2009 at 23:30:10
Thanks guys, I'll pick up a tube tommorow and see how it goes. The quick responses are much appreciated.

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