PC abruptly shuts down

April 8, 2011 at 16:56:50
Specs: Windows XP / Win7, ATA 133/1gb
Please assist. My desktop pc shuts down abruptly after the windows logo "starting windows" I was able to get to safe mode once but not any more. I ran virus scan while there (malware bytes and windows safety scanner) No virus found.

I did memtest86 - test good
western digital hard ware check - hard disk good
chkdisk - good

I swapped out the cdrom and power supply from another pc.

I assumed this must be a file structure issue so I attempted Win Xp Pro repair but would not work in safe mode/would not load in normal due to shut down.

I attempted to upgrade to windows 7 ultimate - got mostly thru but shut down. Not sure if I have a full o/s installed or not now. PC shuts down as soon as windows logo comes up.

Heatsink is warm to touch. I've cleaned fans. Capacitors look good - no puffys. I've exhuasted the few skills I have. What could this be? Processor, motherboard?

Bios health check says:
Dimm Volt - 1.8 v
CPU TControl - 40 degrees C
CPU Fan speed - 950 rpm
System Fan - 2014 rpm
CPU Vcore 1.26 V

Any help is appreciated.

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April 10, 2011 at 07:50:13
Pretty thorough, I'd take it too someone who has a motherboard tester.
Sounds like a hardware issue

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