.. for some unknown reason gigabyte gtx 260 fan is far more noisy as before, when PC is idle that noise is louder, it looks like "buzzing" sound with lower/higher peek, like the fan is rotating faster then slower with some difficulties .. msi afterburner helps me in a way to hear fan rotating just fine on a max or min setting, but that sound in the background is still there, could it be something with fan's bearings? .. also, fan is clean (no dust) as a new one GPU-Z GPU temp. 52C PCB temp. 43C GPU temp. 44.5C PCB temp. 43.5C Fan speed 40% Fan speed 1447-1449 rpm thanks!