bought the card last month and everything works great until i replace the stock HSF to the thermalright HR-03 plus. it just wont start anything when i try to start the computer. replaced the card with my old 7600gt and it turns on and works fine. but when i try the 8800 it wont do anything. then took off the power cable for the card it turns on but that's it, it wont boot to windows. then when i turn it off without the power cord the card beeps and i'm guessing because there was no power cord connected. thanks.