lol nice mouse, i always install my OS through a CD or DVD, idk i don't have enough USb sticks laying around haha.

The PWm switching frequency was available for the UD3H in previous BIOS versions, however it was removed as when we tested it there was no affect on max OC or stability point, even under LN2 switching frequency had no effect. You can ask Dino about this too, when benching all you really need to change is the LLC even under Ln2, however that is with Ivy, i suspect that with Sandy since sandy pulls more power it might be needed to increase the current capability, otherwise the board OCes the PWm settings on its own.