I'm using water cooled ASUS 780 gtx dc2oc. The problem is fan speed.My radiator fan hook up with 12V power of PSU and Fan 1 RPM report and PWM Pulse hooked up with VGA 5pin fan connector. (FYI, Red:RPM#1 / BLK:GND / YEL:12V / GRN:RPM#2 / BLU:PWM. I ...