Even if they have now made their BIOSes OC friendly (which they haven't done save for their high-end MBs), the board you have pointed out is based on the 965G chipset, not to be confused with the 965P chipset. The 965G chipset includes integrated graphics but its OC potential will be piss-poor compared to 965P boards. Putting this fact aside, the only way you may be able to overclock this board is through
ClockGen, which is not guaranteed to work.
Just FYI, that board is called a
DG965WH.
EDIT: According to the Newegg reviews, software won't help you get any further with your overclock. Notice how all the reviews with "overclock" in them say "don't buy this for overclocking", "not for overclockers", etc.