How to troubleshoot your PSU

Renaldo Xhahu

Honorable
May 13, 2013
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Last night my pc was working just fine but when i tried to turn it on this morning nothing happened.

Since nothing was turning on i thought it might be a problem with the PSU, so i opened it up and used a test pen to see if there was any current going through there, which there was...
But the PSU fan wasnt spinning so i tried the paper clip test, with no luck...
I tested the 24pin 4 pin every damn pin coming out of the PSU and they all have power. The weird thing is that as soon as i plug in the 24pin onto the motherboard other pins appear to have no power when i test them. And that gets me wondering if there is any problem with the motherboard...

I have tried taking everything off except the CPU and RAM but nothing turns on...

What can i do