Odd crashing issue - PSU bad?

Soldato
Joined
30 Jan 2009
Posts
17,508
Location
Aquilonem Londinensi
Really odd issue, my PC has just BSOD and reset. It has done this 4 times since 12/03/2010, every time with the same error log

Critical (date/time) Kernel-Power (Event ID) 41 (Task Category) 63

"The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."

Here is the odd bit. It has never done it in front of me, it has always been on idle, doing nowt, usually in the dead of night. I just went for a smoke and came back to find the PC on the desktop with the error reporting wizard open. This is amazingly annoying as I was working on a Java program in Eclipse didn't save it (4+ hours) as I usually just S3 sleep the PC

My PC is 12 hours Prime/IBT stable with temps never in excess of 63c. I have gamed for hours at a time without issue, so I am at a loss. If there is something happening like downloading it doesn't seem to happen

Spec:

Q6600 @ 3.0 (333*9)
4GB Crucial Balistx DDR2 800
Asus P5Q VM
ATI 5850 reference (usually stock)
3 x Samsung Spinpoint F3 500GB
Coolermaster iGreen 600w

Anyone got any ideas? BTW it has happened at stock clocks once too
 
From Microsoft TechNet

Resolution
Kernel power event 41 indicates that something unexpected happened which prevented Windows from shutting down normally. Therefore, there might not be enough information to determine what caused the event. To determine a cause and a resolution, it is important to know what the computer was doing at the time just before the event occurred.

It wasn't doing anything
 
The three other times it has happened the PC was doing nowt, only programs running were the usual stuff and Steam. Only 4 times in nearly a year, could be an issue with my electics in the house. I noticed the lights dim last night of a couple of seconds... Just annoyed about my own stupidity not saving my work :o
 
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