So you are trying to do 4.5ghz with DES2? Hmm what settings do you have in BIOS? when i set it to auto it gives me 1.35v for 4.5ghz which is because of SVID. See what happens when you leave vcore on auto and set 45x multi. IDk why DES2 is doing this, it is very weird, maybe its not properly configured for P67, that is all i can think of. BTW you can use that voltage read point in my review in the review sections to find actual vcore, maybe its a software glitch.