Power supply stopped working?!

[Danzthename]

On Thursday I was playing CS:GO and suddenly my computer turned off. Since that I haven't been able to turn it back on, no mobo lights, nothing. Is this my PSU or could it be something to do with my motherboard. Thanks in advance!

 

[Eximo]

Unplug the PSU from the computer completely. All the connectors.

Follow this instructional video to test the supply itself. If it doesn't turn on, that would be your problem.

http://www.youtube.com/watch?v=khpnx21oydg

 

[boosted1g]

You can do the simple paper-clip test to see if your power supply is ok.

Disconnect the 24pin cable from the motherboard, take a paperclip and bend it so that one end goes into the hole for the green cable (should be pin 16) and the other end goes into the harness hole for any one of the black ground wires. If power supply turns on then the problem is something else.

Do make sure that the power cord is plugged in and the switch is turned on. It is amazing easy to have the power cord 90% in and it look completley in but it is not and that is the problem.