One thing I know for sure is that I have a celeron333 and I have two dims, one is a 64meg and the other 32meg and when you try to add a 32meg sim-72pin it does not want to accept it.It only shows the two dims.And another thing is that the system will accept the lowest clock speed of the two dims.That is as far as I can remember.I run a dual boot system with XP Professional and 98.Hope it helps.

regards
vanman