almost definetely not, but your system will start crapping out and youll get a lot of errors, or u might not even finish loading windows.
i have the new crucial that they are shipping now, and it'll do 150@2-2-2 no prob. i actually started a thread on this, but i cant find it now. id wait 4 someone to tell u how to do this specifically for your board, though, and a link to a bios explanation page.
p.s.: DDR at 133fsb@2-2-2 will almost always beat one at 150 3-3-3, or even 2.5-3-3
-Malakai