Neo's RAM is Package on Package, it is literally soldered on top of the A18. In fact, Neo's Mainboard is in the same ballpark as a Desktop RAM DIMM, which mean

Neo's RAM is Package on Package, it is literally soldered on top of the A18. In fact, Neo's Mainboard is in the same ballpark as a Desktop RAM DIMM, which means replacing the whole Mainboard is in the same as replacing the RAM on a Desktop from an environmental perspective.