. Ultrix was never commercially available on Alpha hardware, AFAIK. As Eric Dittman pointed out, VMS was available in addition to Digital Unix. Ultrix was based on 4BSD; Digital Unix was based on OSF/1, one of the less successful offerings from the very misleadingly named (in today's context) Open Software Foundation. While their Motif GUI was widespread, OSF/1 was not - in fact it's a good trivia question to ask who aside from DEC ever shipped it. (Intel Paragon. AIX/ESA? Encore?) Anyway, I checked and I don't have docs for this model. But just yesterday I dragged out my 3000/300LX and had to reseat the memory before the machine would behave... Good luck, --Steve. smj(at)spamfree.crash.com (lose spamfree to get through, m'kay?)