I am trying to put together a high end pc for a friend and he would like to have 1 GB of RDRAM on board. Although I have looked at a few boards from Asus and Supermicro that support up to 1 GB, they only have 2 RDRAM slots. I guess my real question is, do they make 512 MB RDRAM dimms? So far I have only seen 256. Ouch, this is huring my head, please help !!!