One of my 6950's was getting ridiculously hot while playing games (over 100 C, and this was the bottom card) so I took it out and tried installing my old HR-03 cooler with a 92mm fan on it. Put everything back together and noticed the card wasn't detected. I figured the card probably won't work without the fan plugged in so I put back the old twin frozr cooler. Still wouldn't work. And idea what managed to kill the GPU? Static? I don't think I ever had the PCB touch the carpet though.