So recently my laptop hd died and im out a computer so i got this older computer i got from a friend its a system max..... anyways im trying to figure out a way to get this thing upgraded but i need to know the max amount of ram i can use is? do you guys know any methods to check this. This is what i know. Amd athlon Xp home 1700+ 256 ram. SD ram I seen 4 ram slots a agp slot apparently 4x (on a side question can i use a 8x agp card on it?) 1slot is being used.