Lookit that, an audience of 1!
Well, I would surmise that you have a somewhat better chip than I do, based on voltages alone. I could run 3.8 without hyperthreading quite easily 1.365v, but now when I am at 21x185 (3.885) with HT on, I am having to up my vcore over 1.4. I haven't completed testing so I can't call it stable just yet, but it looks promising. Temps are creeping up, 44 idle, 82 load. Memory still at 8x/Extreme, as above.
SuperPi mod1.5 XS 1M 10.6s, 3DM06 19393.