Mine will do 150 2-2-2, but refuses to do 155 regardless of multiplier. That may not be the boards fault, but perhaps some other limiting factor in the add-on cards or even the cpu. I and other people have had KT7A boards that would not do above 133. I sent mine back and the second one which is what I'm using now is fine. Make sure you get your mobo from a vendor who offers a satisfaction guarantee, because a mobo that is rated for 133, runs 133 fine, but not higher is not grounds for an RMA. Some dealers and certinly Abit are real fussy about that. NewEgg has a 30 day satisfaction guarantee and will waive the restocking fee if you need to send it back in exchange for another one of the same model.
Hoot