To reach 4.7GHz was a cinch once I adjusted all the smaller voltage settings. Like all overclockers, it was a journey with many failures along the way. One day it would boot and run Prime95, and the next time Windows would not load. It took a while to sort it out by backing down to 4.5GHz and raising each setting until I settled on the below settings. Then I raised it until it would not go any higher with the set voltage I felt safe with. Even so, the CPU with 1.4v would not pass 4.7GHz.. I consider this the chip's hard limit, which is a staggering 1.5GHz overclock! Since 1.3v is a little high for my tastes, I can lower the voltage slightly and settle with 4.6GHz just fine.