yea Ace i would also like to know the max allowed NB's here.

one thing i DO know is that at 1.6vTT 45nm cpus die. 1.7+ pll is also dangeorus.

when i clocked with my asus board, High Nb volts, VTT and FSB get auto'd to extremely high volts, its better to manually set them

stay in

1.5 range MAX for vfsb
and 1.6 max'ish for PLL

just to be safe