Great results everyone!
Have some questions to ask. The bios vcore's set to 1.33, but in cpuz, my cpu vcore under load's reflected as 1.30. Which is the true reading?
So i got my q9550 to 471x8.5 stable @ 1.3v (cpuz), but i suspect it could be lower - i'm still quite lost with all the mch/vtt settings. I noticed that at 471FSB, my chip is unstable as hell if my mch is @ 1.3, but once i bump the MCH up to 1.32, it runs 50 rounds of LinX w/o issues.

Any ideas how i can proceed from here to tweak the oc?