How Do I Check My Power Supply Is At Fault?

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How Do I Check My Power Supply Is At Fault?

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teddyman5 View Member Profile	Jan 19 2007, 09:33 AM Post #1
New Member Group: Members Posts: 1 Joined: 19-January 07 Member No.: 107,153	I have a problem with my computer ( I'm using my daughters at present - only while she's at school ) in that there is no power.It was like that this morning so I checked everything and found the fuse gone in the plug.All other things OK, surge protector not tripped etc.So I changed the fuse, plugged in and there was a loud pop with a faint smell.I would suspect the power supply may have blown but I don't really know.So - any advice on what to do next, what and how to check? The supply is a Switching Power KY-500 ATX P4 400W whatever all that means.Any help would be very greatfully received - thanks in advance.

usasma View Member Profile	Jan 20 2007, 11:11 PM Post #2
Visually handicapped, hence the avatar :0) Group: Moderator Posts: 14,526 Joined: 2-October 05 From: Southeastern CT, USA Member No.: 35,824	Try cracking open the case and sniffing around to see where the smell comes from. You can also try a cheap PSU tester (they're about $10 online) -------------------- - John If you need a more detailed explanation, please ask for it. I have the Knack.

uhaligani View Member Profile	Jan 21 2007, 02:09 AM Post #3
Forum Regular Group: Validating Posts: 224 Joined: 18-January 07 Member No.: 106,976	Also try unplugging all the devices inside the cabinet and switiching on again. If that works, the you will have to try pluging everything back in one by one. Leave the motherboard until last - thats the most expensive component. Check also that you do not have any "dangling" fan connections, such as on the CPU, which may be touching something.

dc3 View Member Profile	Jan 21 2007, 02:45 AM Post #4
arachibutyrophobia Group: BC Advisor Posts: 4,828 Joined: 4-March 05 From: Northern CA. Member No.: 13,532	I take it you didn't like the answers you got from forums.computing.co.uk. Where exactly is this fuse that you keep blowing? One of the suggestions at the other site was to disconnect the 20/24 pin connector and place a jumper between the green wire and any black wire and then turn on the PSU. I would also add that you should unplug the PSU before you attempt this. If the fuse blows again after this you will know that you need to replace the PSU. -------------------- Lord, may we please have a little more chlorine in the gene pool?

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