PING
with latest bios for that board (dated 10/17/01, or something like that, and from the Asus website, not a beta), the vcore adjustments are activated in the bios, something that was not available with the original bios and the Tualatins, but quickly fixed.
i have one and flashed it right away, now running very nicely thank you.
why are you running the beta bios when the most recent one from ASUS kicks ass???
and i have to ask, do you know where to look in the bios??? if so, then your beta bios sucks and doesn't activate the vcore adjustments properly in the bios, you need the issue from ASUS and yer problems will be solved.
baldy