I have the latest bios, bios id 12. The command rate has also been at 2T the whole time. I doubt that setting MCH to 1.50 will change anything since I allready had it up to 1.45 and the system has been 100% stable with atleast 467FSB 1:1 divider. When I tried 9*430 I tried it with AUTO setting and also with your posted timings aswell. I'm sorry but I'm done tweaking for now, I tried if those sticks would work at 900mhz 1T and the next time my machine booted I saw "Bios checksum error" on the screen . Luckily when i restarted it started working again. Got a little scared there that I ed bios up and would have to change it.

Maybe you should take some other sticks if you want to use the 1:1.2 divider, cause unless I have missed something these pretty much only work at stock speeds.