Two days ago my Radeon XFX 6870 started to make a low grinding. humming noise. I can temporarily fix it by manually stopping the fan for a second with my finger, but it will come back every time I power up the system. Could it be the bearing going bad or it being off balance? It should still be under warranty since I got it this year (June). Looking for a fix, and I'd rather use the stock cooler than an aftermarket at this time.
Should be this card
Should be this card