Mr.Q: thanks for the feedback. Banned because you were soldnermofo?

Brother:1066 (divider 1:2.66) at stock HT ref. (200MHz) doesn't work on MSI boards yet. Max possible is 1:2 divider whcih gives DDR2-800 at stock HT reff.

To get higher, you need to drop CPU multiplier and have a high HT ref. while keeping 1:2 Mem divider. In that way you can have speeds like below: