Bios V1.0B2x
Bios V1.0B29
Bios V1.0B31
Bios V1.0B32
Bios V1.0B34
(right-click and save)
Don't touch anything before B30. These were very early BIOS releases and contained a lot of bugs. First BIOS that gave me decent results was the B31 (read: DDR3-2000+ with B2B=0). B32 and B34 fix the other subtiming settings in the bios, but you can also check B31 and do the subtimings in CPU-Tweaker I guess.
If you test older bioses for better ram clocking, please give some feedback if there's a dramatic improvement so the guys at MSI can look back at a previous bios and see what they changed.