OK, here's the deal. I just most of the parts of my new rig (still w/o MOBO, CPU, HD) yesterday from FedEX, and I was installing my Fortron AX-450 PSU into my case. Screwed it in properly, no problems. So I plug in my PSU and turn on the main switch on the PSU's back, nothing happens. Then I try connecting a molex to the rear case fan of my Cooler Master Centurion 5 case, turn on the power, nothing. Any idea what's going on?