i was doing the MSI Kombustor 2.5 burn in test and temps reached 71 in like 55 sec. and then kept increasing and kinda stopped at 74 , i kept the test running for like 7 minuits , i realized that the fans were on 58% , so i put it on 80% and the temp kept falling , what should i do , are temps like 80 ok for gpu's like that or whaat , what should i do , i use trixx btw, i have a cm k280 case with 3 fans on is right infront of the graphics card