ASUS Maximus II Formula - new P45 king?

[Grnfinger]

Based on info I gathered from following this thread, I have my Q6700 rock solid at 3720MHz (465x8). During 4 hours of OCCT and 2 hrs of Prime 95, max load temp on any core ws 54c. However, I jest feel I can go higher. I'm not even taking advantage of that x10 multiplier. 400x10 would seem like a natural. I've tried vcore at 1.5v and the memory at 1.9v (G.Skill stated max), but can't get stable. Ive been able to boot into windows Vist 64, but it quickly bombs out to a black screen and reboot. What other settings do I need to tincekr with? what setting do I need to post for you to have a look at? 400MHz would be nice. Thanks!!!

higher FSB is faster I wouldnt use the 10 multi
9x450 would be a better setup imo and should be obtainable if your chip scales well.