How to rig a PC power supply to Jamma Cabinet. Items you will need 1.) ATX Power supply 2.) Wire stripers 3.) Solider wire First of all refer to the Lay out of the jamma harness layout to find out what pins for what voltage You can get all your power off of the 20 or 24 pin ATX connector. If you jumper Green and any black wire the ATX power will always stay on once plugged. Here is the voltage pinout
