Knowledge for the World

How to diagnose a PSU (without any tools)

Being able to test your PSU without tools like a multimeter or other voltage reader really saved my butt and I wanted to pass on the knowledge.

1

2

If you're not used to this, don't worry. Its not a big deal at all.

3

Remove the main connector from the motherboard

This is slightly scarier but only very slightly. There is usually a small clasp on one side that you have to hold open while removing this from your motherboard.

4

Plug in a case fan or a hard drive

Some PSU's require at least a small load for this test to work.

5

Bend the paperclip into a U shape
6

Bridge the paperclip between the green wire and a ground (usually black) wire

If your PSU is a corsair like mine, then any black wire is a ground wire. This is not dangerous at all, its just basically telling the PSU to power up as soon as its turned on.

7

If the PSU fan powers on and starts spinning, then your PSU is most likely good! In my case, my PSU didn't budge so I know its busted and I'll be ordering a replacement.