Gigabyte GA-MA790FXT-UD5P @ OC Club

"When it came to overclocking, the Gigabyte MA790FXT-UD5P was a breeze. Because of the options available and the tweaking control, I was able to push every ounce that I could get out of it - which was pretty decent. By just playing with the multiplier and bus speed, I was able to push the Phenom II X4 955 processor to just under 3.9GHz at the maximum voltage of 1.5 volts."