Q9550 - Abit IX38 Quad GT - 4x2GB RAM - Help me get the RAM(MCH) stable

I can't seem to nail down the settings to get my setup stable. My CPU is fine at 471FSB, but the board/Memory Controller won't get totally stable.

I can't seem to find any fool proof info on what kind of voltage would be safe for MCH and VTT (If that affects my issues).

Here's how I currently have things set:




My CPU does 4ghz at 1.3875v, but that was always with LLC enabled. in trying to nail down this problem, I thought maybe vdroop was causing problems, so I upped my vcore to 1.4v


I would appreciate any input from anyone with experience with this board/chip/setup.

Thanks!

BTW, what I'm kind of looking for here is a "safe" range for voltage in MCH and vtt (And any other settings which might increase my RAM stability