at this point, i'm unsure of the RAM manufacturer. It's so hard to tell for me. with mobo's and HDD's it's so easy to tell. I wish ram was the same way. My roommate is using a 256mb stick of pc2100 (ddr 266 is pc2100, right? it's been a while) that is probably not the same brand since he's using an intel board, and it's known good. How would I slow down the processor/board in order to test it with that stick?