> Just to translate between tech-speak and marketing-speak, what kind of > machines are IP20 and IP12? ip12 is either r3000 indigo or 4d/30 or 4d/35. (33, 30 and 36mhz, respectively.) ip20 is the r4000 indigo, either r4000/100 or r4400/150. these had the added advantage of using commodity 72-pin parity ram.