microsoft has confirmed upper hardware limits for xp set out as follows main storage max built in flash drive of gb and or a hard drive of no more than gb graphics no greater than directx capability main memory no greater than gb cpu has to be single core and no more than ghz unless it s one of the following intel atom n n z z z z z or intel celeron or amd geode lx athlon e sempron u or via c m ulv neon u u and u cpu screen size netbook up to inches large screen netbook up to inches nettop no limit given from itexaminer may