PC100 RAM is perfectly compatible with your motherboard. I don't think your motherboard is compatible wih RAM of 266Mhz from what I see in your message. Check the specs of the bus-clockspeed (is it called that way in english?). My motherboard supports clockspeeds of 75Mhz 100Mhz 133Mhz and 266Mhz (and maybe also 200Mhz and 333Mhz). Your motherboard can probably handle 133MHz, but you have to keep in mind that you can't use different types of RAM at different frequencies at the same time. If you have PC100 RAM and you want more RAM you have two options: -Buy another RAM stick of the same frequency. -Buy another RAM stick that is compatible with your motherboard, but if it has a different frequency than your old RAM stick you'll want to replace the old RAM stick completely.

(_/)
(='.'=)
(")(")This is Bunny. Copy and paste bunny into your signature to help him gain world domination.