I have a PPGA Celeron running at 466 over a 66 mhz fsb. This is mounted on a P6SET-ML motherboard manufactured by the elitegroup computer system. Does this mean that I have to use 66 mhz memory? I have 192 megs of PC-100 but it's not recognized when I put it in. The board will accomodate a P III, but if there's a way I can use the memory I have without purchasing a P III, I'd rather do that. Someone in the know please advise. Visit our website regularly for FAQs, articles, how-to's, tech tips and much more http://freepctech.com