Agreed, bump up the mem voltage to 2.25, pci-e to 110mhz. my 6300 on the same mobo is @ 3.5, I did hit a wall around 420 fsb, but then just upped it to 450 fsb & is was solid from there on up.

Good luck & check out the guide from FreeCableGuy in the intel section & try to mirror most of the setting he reccomends, they work.