PSU Problem

JunkBot

JunkBot

JunkBot

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Joined
21 May 2006
Posts
327
Hello

PC died a few years ago and never tried to solve the problem, have go the PC back out again and stripped it down and cleaned all the components and put it back together again.

When I flick the PSU power button the motherboard LED illuminates however when I press the power button the CPU fan moved slightly but doesn't spin up and nothing else happens.

Could this be a dead PSU, I don't have another to try it with but was thinking of buying a cheap 1 online to test - however the system is about 10 years old so don't want to be spending a fortune on it. If I can get it working great it's something to have a potter about with.

Any ideas?

Thanks
J
 
Not sure what you want me to try....

If I disconnect the the 24 pin ATX connector and attach pin 13 & 14 to a 3 pin fan connector and then try to boot? Do I need to disconnect any of the other PSU leads from the mobo
 
OK, I have done the paper clip test which has confirmed that the PSU is working. However when all connected up the fan moved slightly then nothing.

Any other ideas or test I can do - not quite sure where to start with diagnosing problems so any help would be appreciated.
 
UPDATE: I have taken the advice above and it appears to be a GFX issue as the fans spin in with the card removed albeit giving a long beep - I assume this is because there is no GFX card installed (there is no onboard graphics). Will have a search for a cheap replacement card.

Thanks for all of your help its most appreciated.
 
The faulty card was a BFG GeForce 7800, would preferably like to replace it with something of a similar spec. It was only 256mb can I take it the 5450 would be a decent replacement.

I'm not wanting to throw fortunes at it but would like to get it back up and running if you get my drift.
 
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