Alright, I just got a new mobo/cpu, I got it all setup. I thought everything was good until I tried booting up with my x800 installed. I got the "you need to connect the external power cable to the video card" message, when its clearly plugged in. So I thought it was my powersource. I ran out and grabbed an enermax 450 ps (i'm running only 2 hdds, one cd rw drive). Still the exact same problem. Has anybody got this? I'm going to go connect my old video card and see if it'll boot.