I have a board on the way, I know Raja also has a board and is already doing very well with low VTT compared to everyone else. I ONLY test with 4 and 8GB now, 2GB for me is dead...hell i don't even request 1GB dimms any more

If there are some bios tweaks needed I am sure it will get sorted....even DFI/Asus have had issues in the past with 2GB modules, Asus if you remember were forcing tRFC to low.