DFI UT X58-T3EH8 continued - Part 2

[Sam_oslo]

and even more!
for ex i try myself stabilize at 4300, 1.37 vcore seems good, but vtt i have already 1.39 and still under tests coz after 1 hour prime blend pc rebooted

This was the case with my i7 CO too. It wouldn't care much about VVT at lower OC, but would need 1.34v VVT to stabilize at it's max stable-OC @4GHZ(211x19) 1.34v. It wouldn't stabilize with anything else than 1.34v VVT=Vcore on it's highest OC.!

My W3520 is not so sensitive to VVT yet. It will run stable with any VVT between 1.21v to 1.28v @4GHZ and @4.2GHZ, but I guess that's because it is not at it's max-OC yet. I haven't pushed it toward @4.4-4.5GHZ yet (because of the summer heat) and I'm wondering if it would get more picky on VVT and then would like to have VVT=Vcore, too.