I'm working on a mini Xbox and I'm going to be using a picoPSU for power. I've already read up on the 5v amperage issues and I bought one that should work fine. I've wired up all the ground, 12v, 5v, and 3.3v wires, and connected the Xbox's 3VSB, PowOK, and PowOn all to 3.3v. However, when I enable the ATX power supply and press the power button on the Xbox, I get green power LEDs for a couple seconds, then they blink green and red, and the console never powers on. Need a little guidance on what I should be changing in my setup.