The TH7-II is "potentially capable" of vcores up to 2.2v. But, since the default Northwood is 1.5v, most of the current BIOS will only let you have 1.7v at most. There is a hacked "77" BIOS that allows up to 1.85v, but Mr. Natural's 7D and 7E BIOS files are the best and most stable. Those give you a max of 1.7v. The older official "38" BIOS would only give you 1.625v. Hence the reason why I did the VID pin wire wrap. Depending on how many pins you wrap, this fools the mobo into thinking the default voltage is higher than it really is, so it unlocks more vcore selections in the BIOS. I have 4 pins wrapped for a default of 1.85v, so I have vcore settings of up to 2.2v available in the BIOS now. The old Willamette CPUs had a default vcore of 1.75v, so the BIOS allowed higher voltage settings than with the Northwood.