How to Test A Desktop Power Supply

I show you how to Test a Power supply if is working or not..

A power supply looks like this..

and here were to test it..

  You Need a Pin or  a a piece of wire

 Now Plug the Power Supply

 Used a wire  to Jumper the GREEN "PS On" to a Black ( Com)one..
If the Power Supply FAN is ON  You have a working Power Supply.