When I change the setting for core voltage in the bios it doesn't actually change the voltage. It seems to be locked at 1.32v. The CPU is a P4 550 3.4ghz and the stock voltage is supposed to be 1.4v. I have the latest bios. I can't overclock even a few mhz on the fsb with the voltage running LESS then stock. I have had my CPU to 4ghz on a P5W DH Deluxe. It is running nice and cool though. I wonder if the voltage adjustment is limited to the core2duo processors ?? EDIT... Is there a utility that supports this board that I could o/c from windows? Maybe it would allow me to change the voltage there.