I have an asus P2B-F mobo running 512 megs of ram It's capible of holding a gig of ram. It has a PIII-450mhz with a 100mhz fsb thus I need PC-100 but for stick of 256 its like a 100 dollars. where as like pc2700 for stick of 512 its like 50 bucks. whats the deal? why is PC100 so expensive?