Asus M4A79T Deluxe Results and Help Required

[aussie7]

So I'm trying to overclock my AM3 system

Specs
Asus M4A79T Deluxe
2 x 4GB Gskill PC3-12800 F32133C9D-8GXL
AM3 965 Black Edition
Kingston SSD
ATI gpu PCI-E Radeon HD5670

So far I have the FSB upto 250FSB
- CPU 16.5 x 250 @ 4125Mhz 1.5v CPU_NB @ 1.35v NB @ 2000 HT 1750 Ram @1667Mhz
- CPU 16 x 255 is unstable even with CPU_NB @ 1.45v and lowered NB / HT / Ram @ 1333Mhz

I should note, that to get windows stable @ 250FSB I had to set the ram timings to manual as auto wouldn't boot

The cpu was working in an Gigabyte board with DDR2 at 270FSB so I know it can handle higher FSB

I have tried everything I can think of to get higher FSB with no luck, anyone got any tips

my bios pics settings