E8400 multiplier problems

Hey all,
After flashing my bios to the latest bios I started experiencing a really strange problem.

All of a sudden I can't boot in 9x multiplier. It will get to the Vista loading bar, and then bluescreen/restart. If i move down to 6x, it boots and runs fine. 8x works as well but still shows as 6x in CPU-Z.

e8400
dfi dk x38-t2rb
ati 4850
4gb ocz platinum ddr2 pc8500
500gb WD
Vista Ultimate x86
thermaltake toughpower 750w

I didn't not change any settings at all in abs. I installed it, started following the manual and then turned it off when I saw no profiles in the 4 memory banks. Then when I shut down the problem started.

I've tried disabling eist and c1e, that allows me you run correctly at 8x but still bluescreen at 9x

I rolled back to the Bios i had before and the problem still remains.
Please help!