why dont u use k10stat lightman?
i changed cnq to 650mhz 0.75v for low and 3700mhz 1.425v for high.
even cnq down to 100mhz if i want.
but i asume u clock this way to oc the northbridge?

i have noticed that they still didnt add a positive voltage adjust for nb in the f6 bios. lame!!