Go to the Frequency/Voltage Control menu in the bios.The 5th item listed is Clock by slight Adjust, this is where you increase the FSB.
Press enter on clock by slight Adjust and enter a number between 100 and 133. Prob only be able to get 110 or 115.
Kind of a criptic discription on the header for this feature, sort of like they didn't want you to find it or use it.
On my mobo I have to use the number keys at the top of the regular keys, the nuber pad on the RH side of the keyboard will not enter numbers in the field of setup screen.
hope this is some help to you. PM me if I can help you with anything else on this mobo. I think it is a very good boasrd, and have had ZERO trouble with mine.