IMO Foxconn BlackOps is over-stabilized to get the best results for OC at sub-zero temps. It is designed for benching, not for normal operations (as we know, air cooling of NB or water cooling with copper-aluminum design is a joke).
I could run qx9650 with 1.392V rock-stable on 780i, and for the same stability I have to apply 1.45V WITH Vdroop compensation enabled! on BlackOps for the same CPU. I had been able to run 460MHz FSB with the same QX9650 on 790i (unfortunately, te motherboard was not prime-stable), on BlackOps I can run 420 FSB stable with safe voltages, not crazy ones, posted by Cpt. Planet in his overclocking guide.
http://www.anandtech.com/cpuchipsets...spx?i=3156&p=6
1.81V Vcore (according to a BIOS picture) for 4.278 GHz on CPU 24/7? That is insane!
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