Hi, Im new here, I have some problem with my comp, i have install up to 3.5 GB of ram (1 GB X 3 and 512 mb X 1) and my bios system shows only 2559mB of ram, the motherboard that im using it is asua P4P800-X and im using XP-32 bit as my OS, can some one help me with it cos i read the manual and it not give much info about it, thanks in advance