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Computer Not Powering Up But All Lights On Motherboard and M

by andantesash / September 23, 2010 12:09 AM PDT

I have my friends computer to reformat for him, so I went round to his yesterday to pick it up and it was on, so he shut it down etc.

I brought it back to my plugged all the writes in, monitor, power, keyboard and mouse, turned the power switch at the back on - the computer started for about 5 seconds and went back off, I didn't even press the power button on the front of the computer.

So I came to the front of the machine and pressed the power button and nothing happened, so I took the power cable out the back of the machine 5 minutes ago and when I plugged it back in the machine started up for a few seconds with the fans going and lights on the motherboard and then switched off again

Any idea how to fix this?

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Try this
by SuperReviewer / September 24, 2010 4:09 AM PDT

Try replacing the thermal paste on the CPU

Sounds like the computer is over heating

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...
by squidie / September 24, 2010 11:02 AM PDT

It could be a number of factors really, is this PC really dusty for a start? Is the heatsink/CPU fan spinning?

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When the computer shuts down...
by Brechan / September 24, 2010 6:21 PM PDT

When the computer shuts down; do the lights on the motherboard shut off as well, or do they stay lit? If it's the former, then it could be a PSU problem.
As others have asked, when was the last time a really good cleaning was done on this computer?
http://reviews.cnet.com/4520-11319_7-6240575-1.html?tag=forums06;posts
When cleaning the computer, don't overlook the replacement of thermal compound for the CPU http://www.youtube.com/watch?v=fRRWbQUqW1Y&feature=related (this is a good video showing how to replace the compound on either an AMD or Intel motherboard)

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