i think the 11-07 is the pre-45nm bios. it has a problem with the 7.5 multi
but if you have e8600 you can get 11:29x-3xx in 400x10 1:1
i don't know if it's gonna work with e8400 E0 but i think it would.
because my friend did 11:29x in 400x10 E8600 1:1 with bios 0317