your bus speed is defined by a multiplier as well, it can get involved...usually default is best to start until you get familiar with it...I think your base multiplier is 11?
your conroe may or may not be unlocked...I forget. But if not, you would have to do a mobo mod to unlock.
you have your manual though right? Get in that bios and mess around
Just know how to reset with the jumpers
EDIT: See if this'll provide you with a little more knowledge