I have just recieved a stick of RAM I ordered from e-bay. It is supposed to be 1GB but when I put it in and checked my RAM size, it is only displayed as 512MB. There is a sticker on the RAM stating it as 1GB (not that that's a guarentee, I know). Also when I added my original 2 X 256MB sticks, my RAM size is displayed as 768MB. Are there any settings I need to change to allow larger RAM sizes or am I being naive? My motherboard is a KT3 Ultra CE MS-6380E an is supposed to allow me 3GB worth of memory.