920 cpu, 3.6 ghz (180 bclk), 1.22 Vcore, ram at 1440 ghz, V-ram at 1.56 (corsair white-label dd3 1600), V-qpi at 1.2 I think. Asus P6T Deluxe. Basically I bumped up the cpu and qpi voltages to the maximum of the "blue" region, everything else is forced to manual at the default voltage except ram which is bumped up a little. I'm getting temps of ~42 idle and ~68 load, with a Thermalright UE at stock RPM in an Antec P182 case (all fans on low speed).
I was able to boot successfully at 4.2 Ghz but I had to crank the vcore up to 1.33 v, and the system BSOD'd as soon as I started a stress test. I think it would be stable but only at >1.35 V. I was seeing temps over 80 degrees at 1.33 V so I didn't want to push it that high (since I can't increase my fan's speed, it's not a PWM fan).