Hi, I build high end video editing capture systems. I have come across a problem that I just can't wrap my mind around. All the symptoms said it was the power supply. I changed the Antec out and put a Kingwin in. Hooked up everything, PCI-X theh hole 9 yards. Still dead. Started trouble shooting each device. Even with just the new power supply hooked` up to the board, I still get no power? Besides`the CPU any thoughts?