my graphics card has a heat sink but i have a blower fan sitting right ontop of the sink pulling air over it and blowing it out the back ,,, i have 6 other fans all temp regulated ( 3 sucking in & 3 blowing out) not counting the psu's 3 plus the cpu & nb fans ,, my system always stays nice and cool ,, it can get a little load but i dont mind that ,, ,,, i have a post releating to starforce you might want to look at ,, its called possible cause ,it could be interesting,.