I have an Athlon 2200+ DUV3C, KIXJB 0404SPMW. My mobo won't post, so I can't test the chip to see how much overclocking is possible. If other people have had good experiences, then I figure I'll keep it. Otherwise, I'm going to return the processor and wait until my mobo is RMAed and fixed before I get another processor. I'm basically just trying to figure out if I can jump the FSB to 166 MHz.