I thought my 8800 GTX was too hot at 70c idle. turned up fan cycle to 100% idled at 60c. I used riva tuner turned down the clock in 2d and 3d 300/450 idled at 54c. Surprisingly I could own up CSS, Oblivion and Bioshock at smooth fps. originally was 600/900 i turned it down to HALF of it's power!