I specifically said if you only want to play cart games. dimm games are not cart games, at least in my mind. The typical case for this is someone has an old capcom jamma cab and wants to run mvc2 in it. I wouldn't recommend doing PC PSU to power the naomi, but it can work. I like the sun PSU because it has a voltage adjustment, and the connectors work without having to modify it.it will not if you want to power a netdimm. You are better off rigging a PC PS to power the naomi.