Originally posted by Chirone you don't need to get into the computer to do as i said, you just need to get the specs of the motherboard and look for the ram it supports from what i hear xp64bit doesn't have any support nothing is wrong with vista 64 bit True, but the specs wouldn't tell him (as far as I know) whether he's got one or more slots free or not, which is relevant info. I don't know how good vista 64 is... but would you recommend it over win 7? I dunno.... a lot of people are saying 7 is was vista wasn't and the support for 64-bit can only have improved. And yes... don't remove things if you don't know what they are or what they do :S