ATX Master / Slave


Joined Jul 17, 2007
Actually, just use any RED wire in the power supply harness of the computer that's to be the master.

It's best to not cut into your supply harness. Just get one of those Molex "Y" adapters you use for adding more drives for a couple of dollars, and modify that. Red=+5v, yellow=+12v, black=gnd.