Just flashed the bios to F5b (still beta) and it seems stable. I've gotten about 3.88ghz stable around 1.24v or so. 4ghz seems to be very difficult for me. I really have no experience with PQI or 1156/1366 chips as this is my first.

Could someone give me some hints about what is a safe vcore, vtt (and anything else that's relevant) for this board? i don't see a need to even hit 1.3v vcore for my cpu (21x191) but It fails stability even though 185x21 has no issues.

i have very good cooling on my mosfets. ALL copper w/ a san ace cooling them!