I've seen various sites offering to upgrade your Xbox ram from 64 up to 128mb. If your running a OEM system, would it really make any difference for in game performance?
the bottom line is that the xbox games are programed to use only 64 mb of ram thus having an upgrade in ram does nothing at all for xbox games. i am sure it would help linux and other programs that can use the ram, but its probably not even worth it.