and also how can i make my gpu fan make it 100%... i'm using windows vista by the way and updated driver.. thanks

My Specs:
Asus P5WDH Deluxe Bios 2301
Intel Core2Duo E6750
3gb Corsair TwinPC6400 (2x1gb) and (2x512mb)
250GB WD SATAII 16mb Cache
Palit 8800gts 320mb 320bit
550Watts Hec Powersupply
Lian Li PCb20 Casing