I have a ABIT SLI Mobo, 64 bit Dual 3800+AMD Proc, 6800GS PCI-Ex16 Card and Antec PSU. Built system was running awesome for 3 weeks. Rendered an Image and left it running and left the house. Came back and it was OFF. WONT RESTART! I see a red light glowing on MOBO but when I unplug the cord it goes out and comes back on when I replug it in. I figured the PSU was fine because of the red light coming on and off. SO i replaced the MOBO. Still nothing. Is is possible that the Graphics Card took a poop?? Would that cause the system not to turn on if it died(fans ect....) Does the red light mean that the PSU is bad?? Any help would be great.