Just bought another GTX 570 for my rig which i have SLI'd up with my other 570. Seems to run fine BUT seems everytime i load up a game, the PSU starts marking a loud buzzing noise inside (sounds like vibration). Only happens when in a game though. PSU by the way is an OCZ 1000W ZX Modular PSU. If i leave either card in by themselves but when both are connected up, the buzzing occurs.
If anyone has any ideas, would b greatly appreciated.