to add to what boonesmi was saying...there are different types of steppings even within the AXIA's themselves. The two good AXIA's are the AXIA C or the AXIA Y...Y being the better. AMD 1.33 AHYJA stepping is supposed to be the best one out right now...i have one and it doesn't hit 1660 like it was reporsted...but i'm hitting 1540...and i'm gonna go a lil higher once i get my new P/S.