ok i admit my knowledge of ram is crap it is really really bad and i need help i still have my old p3 runnin on a intel mobo(model number unknown) that has sdr ram and it sux ok one of the chips burned out and i cant get into windows with 64 mbs of ram(i can just its so slow)ok i got a new stick of 128 mb pc100 ram and it wont work on the mobo 8O i checked everything compatibility issues none the board can run pc 133 ram and then i checked if it was the ram stick its self no scratches no bruises nothin then i put it into my freinds dell p3(an old work station that he got from his dad)which is runnin 512 mb fine and guess what it works im stumped ok my comp a p3 at 1.3 ghz cant run the stick of ram but his a p3( both tualatins) at 1.2 can what the hell is wrong i got the ram for 50 bucks from the computer show here at queens college in jamaica and this guy has never ripped me off before(once i got a bad hd from him 2 months later when the show was agian in town i found him and he gave me all my money back)