hey. first off my cpu turns on but doesnt boot with my 8600gt inside, just the fans run at full speed. when i put my old gfx card 7300se in it works perfectly fine. i've put it down to being a faulty 8600gt, ive tried everything- cleaned everything - turned system temp gage off, nothing works, im wondering is it the card itself or can i modify summat to make it work? ive had th 8600 2 years - not OC. thanks.