Problems with PC-133 into Celerons

Hi All,

I get a lot of computers donated or that I'm asked to fix because i'm the local 'Wiz' most of them are celeron 500Mhz or less and need PC-66 memory, I've been running into trouble when adding PC-133 memory to help them work under Windows XP (Too lazy to install other OSes), the systems become unstable but go back to normal when the offending stick is removed, they also work just fine when I put in more PC-66 sticks, but I have run out of spare sticks. Could it be that PC-133 is too fast? would going to PC-100 be better or do I have to install PC-66?

Most likely you're using single sided memory and it doesn't like it or vice verse. Look in to that. I can't remember but I think double side memory was more compatable in the old days.