Huw Davies [mailto:Huw.Davies@kerberos.davies.net.au] Actually, the Nautilus family underwent a slight redesign (or possibly a major redesign) and became the Polarstar family. This was the VAX 8810 (1 cpu) through to the VAX 8840 (4 cpu). Up to 2 CPUs per cab, max 2 cabs for a full system. The system bus was renamed from NMI to PMI (and presumably underwent some changes). The PRO console was replaced with a MicroVAX II. There was some confusion about the 8700 and 8800 machines and so they were (IIRC) renamed VAX 8810-N and VAX 8800-N. I never saw one of these so I don't know whether they were real VAX 8700 and VAX 8800 or whether they were a VAX 8810/VAX 8820 but with a PRO console ( or even a MicroVAX II console!). The maintenance manual for the Nautilus series was online at http://208.190.133.201/decimages/moremanuals.htm but that seems to have slipped two months backwards in a time warp and all that has vanished! I've never seen a similar manual for the Polarstar series, but I have seen the corresponding lists of modules and they did look quite different to Nautilus IIRC. Antonio