On Saturday, February 8, 2003, at 02:16 PM, Christopher Hack wrote: > hello fellow cubers. quick question. i was under the assumption you > could > use pc100 or pc133 chips to upgrade the ram. i have just removed the > existing ram and replaced it with a whole load of pc133 ram - then > found the > cube doesn't like it. fortunately the dealer will take it back for a > swap, > but i just wanted to double check with one of you knowledable cubists > out > there. It is something else about that RAM that is bothering your Cube, not the pc133 spec. Actually, there are some PC133 RAM modules on the market that fail to failback to PC100, but if the RAM conforms to the PC133. it _must_ work as PC100 memory. It is kind of a lottery really, but if you buy it from a reputabel source you should have no problems. Or usually ask if you can return them in case they don't work, as you obviously did.