Ok, let me clarify: There are some 600E specs, which state that a max of 288MB is possible... My 600E (2645-8A0) was able to gobble a 256MB and a 128MB, I did try it with 2x 256MB but all I got was some desperate beeping. Still I somehow doubt the stuff being said in that link you gave, because I think the specification of the chipset ends with 512MB... Alex