On Tue, Jun 29, 2004 at 06:57:12PM -0700, Al Kossow wrote: I've also seen an i486 on a dual-height Qbus card, but it was definitely not for the general purpose market... it was in CompuServe's X.25 boxes as a replacement (up/down-grade?) for a PDP-11 processor. In the last Qbus incarnation of these systems, they put 3 9-slot Qbus backplanes in one (big) rackmount enclosure, along with 3 power supplies, 3 halt buttons, 3 run lights, and a wad of custom serial cards. I have one of these enclosures at home, but no proprietary cards. Someday, I plan on putting 3 independent systems in there, running 3 different OSes (RT-11, 2BSD, and one other, haven't decided what). I might even be able to get away with putting 3.5" ST-506 drives inside the case and running them off of the internal PSUs, presuming I don't load these guys up with cards. -ethan -- Ethan Dicks, A-130-S Current South Pole Weather at 30-Jun-2004 02:50 Z South Pole Station PSC 468 Box 400 Temp -89.5 F (-67.5 C) Windchill -130.2 F (-90.09 C) APO AP 96598 Wind 10.4 kts Grid 089 Barometer 670.1 mb (11001. ft) Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html