My PC was working fine. One day, I plugged in my USB printer and shorted out the PC.
I restarted and it worked until today. Now the PC won't turn on.
I tested the power supply on its own with a PSU tester and seems to work fine. I also installed a brand new power supply and nothing.
I have noticed that when I have the PSU plugged into the tester on its own, it works fine. As soon as I plug in the auxillary 2x2 pin on the MOBO, it shorts out.
Would appreciate any advice.