I have an Antec True Control 550, and my Previous Board would false start. Lights and Fans for about a second and then power off. Sometimes I could get it to start after 5,10, or 20 tries. One thing I noticed is that I accidently turned my computer on without the power connector to my 9800 Pro connected. Computer would boot every time I tried this. So I got used to starting my computer by plugging in the video card power connector about a 1 second after power on. Kind of a ty way to live with it. In the mean time, I would leave my computer on all the time. My Antec also did the same thing on an Intel board.

Funny thing is when I recently upgraded my computer with all the same components, and a Winchester 90nm, and the MSI Neo2, I have not had this problem any more.

Maybe you guys might want to try my "work around". Might be a little risky, but I never fried anything.