EVGA 680i with bios P19.

nTune (manually adj. for the mobo dont work)...the rest of nTune is OK.

8x multi up to 444.5 FSB is OK.

445 up to 465 No boot.

466.6 FSB everything OK.
I will try for more if my cpu can handle it.

@Phil
MEM @800 (UNLINKED) works fine 4-3-2-4 1T.