Quote Originally Posted by eva2000 View Post
each cpu is different.. as Anandtech folks said, finding the balance between cpu vcore, cpu vtt (uncore) and vdimm is key for stability
Good quick Super Pi 32M results .

You have chosen the easy (and always correct) answer.

I kept the same VVT (1.29v) and Vdimm(1.63v), and same 6-6-6-24 x6 mem, that i have used for @4GHZ Ht.Off (1.26v) and have been primestable, and only raised Vcore (to several values between 1.32- 1.35v) to stabilize @4GHZ HT:on. But it gave me instant freeze at the start of the prime95. I raised VVT too (between 1.31v to 1.43), and this is in line with your suggestion, and it still freezes. i didn't touch Vdimm or timings.

It seams that i have to hit a "sweet spot" for vcore, vtt and vdimm (that i haven't yet been able to find) to get it primestable @4GHZ + HT.