Not likely then, as the problem was there with another PSU before I upgraded.. still I'll try it when I get around to opening her up. Makes sense, thanks. Probably, it was more of a side question I was curious about. The MB only has 2 available BIOS, and the update is only a minor usb mouse fix, and I've tried both. Checking Corsair I see a firmware update has just been released, no changelog though.. I'll see how that goes..