The Phenom II List of Overclocks

[Lightman]

....

I know it's been said 1000 times, but it really seems like these things like staying cool. I've ran OCCT a number of times and everytime my chip gets ~55c it fails. Every run I've made stays stable until it gets around that temp...
(I'm on water BTW)

I backed it down to 1.55v on the CPU, and lowered the HTRef to 204 (3.876Ghz) and it was running fine for about 1/2 an hour, but I saw temps hit 51c and I got greedy so I lowered the voltage 1.5375 and it crashed...
I'm pretty sure it was actually good other than my impatience.

Don't know if you've had the same experiences or not, but I know we have the same stepping. It might be something you want to watch...

I know it was not directed at my, but I have exactly same behavior as you. As soon as my CPU hits 54-56C it's error or blue-screen!
BTW my CPU is benchable @3.9GHz in most apps, except OCCTP of course
3.85GHz is stable when using 1.475V not stable when using 1.52V . I will try to do some veryfication/validation over the weekend.

PS. I'm starting to see a pattern that OC scales better with volts when benching in 32bit mode. 64bit mode hits voltage scaling at lower threshold. Possibly due to more heat produced in 64 bit mode and/or hotspots in CPU.