Quote Originally Posted by HaTaX View Post
Okay, been pulling a few of my hairs out over this lately.

It seems I didn't get a good one out of the batch. I think my CPU starts needing lots more power over 3.8ghz. At 426x9 ~3.8 I can complete orthos and prime for at least an hour on 1.35v. Once I start heading for the 4ghz line it starts needing VCore to reach stability. To get stable at 446x9~4014 I need 1.44 volts as reported by the hardware monitors, I haven't checked with a DMM yet.

I can boot into windows fine, run my applications, but as soon as I goto Prime it, it makes it about 10 seconds and fails. I have also tried adjusting my CPU VTT and GTLREF settings up and down 1% at a time from 55%-75%. No dice..

Perhaps I've got a bum chip here? How is everyone seeing vdroop affecting their OCs at higher frequencies? I am considering running to Rad-Shack tomorrow to pickup a variable resistor and try to get vdroop under control.

Part of me wonders if it will OC better with a proper BIOS from abit for the wolfdale CPUs?
Your chip is ok, I think so.I had the same - problem is with our Boards and the BIOS.
I have to set in BIOS 1.485vcore , MCH 1.45V and VTT 1.31V and then I can run stable on 4 GHz.Offset betwen BIOS and Windows is very big, and Real vcore is 1.39V (1.368V after vdrop).Dont touch GTLREF settings it is waste of time.