The only thing to watch for, IIRC, is there are a few, odd, parity only versions of the IIci. I believe the logic board is labeled as such, and they are pretty rare, so odds are you won't have one. But it might be worth a quick look at the board to be certain (IIRC, it is labeled "Parity" near the SIMM slots). As long as you don't have that odd version, then parity or non parity will work fine in the IIci (but I recommend you keep them all the same type) -chris <http://www.mythtech.net>