Have 3 GTX 285's in tri sli one of them is running very hot the other 2 are normal temps. mid 80s under furmark with about 65% fan. The one thats giving me issues after 15 to 20 minutes of fur mark will hit 100C at 100% fan. Is it possible the heatsink isnt mounted correctly or something i can fix without having to RMA the card? its an evga so they are pretty good about modding i beleive? i want to be able to keep my stepup etc for this board.