damn dude... a 6600gt at those speeds? with stock cooling? how?! i get tears at 450/1.15ghz on a 6800gt
btw, that's not true for power reqs, im running a 3500+ winchester, 6800gt, a HDD, cd/rw, hardcano, venus 12 and 5 case fans on a thermaltake 420w without much volatage changes or w/e (you know what i mean)