I bought an Sapphire ATI Radeon 6870 and got it in the mail today. I installed my card successfully and booted up my computer, then got the drivers. I started gaming immediately and about 2 minutes in, I heard my video card clicking really really loud. I think it's the fan, but I've found no way to get rid of the noise. It only happens when I'm getting somewhere graphically intense in my game, so I think it's when the fan speed picks up. Normally i would just turn up the speakers, but this clicking is REALLY loud. Any suggestions?