My little brother's LC580 is housing a PowerMac/Performa 52xx/53xx board. (Can't exactly remember which it was.)
So yeah, there are a lot of logic board that will fit in this "little" guy.
Edit: basically, if it fits and the connectors inside align, it should work just fine.
So yeah, there are a lot of logic board that will fit in this "little" guy.
Edit: basically, if it fits and the connectors inside align, it should work just fine.