try setting the vnb and vfsb to auto and see what the boards sets it's self to, thats how I was able to hit 5ghz, just upped it a notch from what the auto setting set, also you'll deff. have to up cpu volts, see these wolfies are great clockers with low volts till you gte to a point then they need alot bigger voltage jumps, I'd up cpuv +.1V and set vnb and vfsb to auto try that, if nothing try messing with the ram volts and rcomp settings.