Pretty sure its the PSU, though it could be the graphics card also. Whenever I load the a game with the starting videos my computer starts to squeel. Its very faint and sound almost like chalk acrossed a blackboard. My system is as folllowed, E8400, 2gb of Corsair dominator ram, 8800gt, evga 750i, 300gb HDD, and Coolermaster 500w psu (36 amps on 2 12v rails). Also this was happening in my previos machine with the only same parts being the PSU, GPU, and HDD. Is this a problem with my PSU being underpowered?? or is it just interfierence? Thanks