Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ARIZONA.BITNET!UA_HACKS%EVAX2 From: UA_HACKS%EVAX2@ARIZONA.BITNET (Hardware And Computer Knowledge Society) Newsgroups: comp.sys.dec.micro Subject: how to get to 22 bit. Message-ID: Date: 24 Mar 90 03:16:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 41 After much book scrounging I have more questions about pdp's. First off though I wanted to mention that the current system was a gift and we can't afford to buy much, in fact just about everything has been donated. We have: a ba11 Ne type unit a LSI 11/23 cpu w/ Floating point and MMU and a 9X9 11/03l backplane. the connections a soldered. From what I have read the cpu should handle 22 bit, but the backplane won't. It has been suggested that I wirewrap (hard from soldering), is that my only approach? How about chaining backplanes? because I can't change the current backplane I only have 9 slots to use, can I slide around this? Also someone said that to attempt to redo the cd side of the backplane from (ABCD to ABAB) often has power problems. what if I chained 2 units and made them both 22 bit by rewrap? The reason I need so many slots is that I have 10) 32k cards, 2) 4 line muxs and 1 drive card (2 RL02's, I would like add a second drive card (going to 5+drives) and Decnet to a series of vax 11/750's. While I am lending your ear :-) ... Does anybody know the pros and cons of rsx11m V4.2 (or 4.0 or 4.1)? to Unix V7? other problems: I can't seem to get rsx up full tilt, Dcl commands are not in the system i.e. directory. I get a task not installed but I can't find anything refering to installing these tasks. And finally what kind of software can I get out there on this system? Where can I find it? either RSX or UNIX. Thanks, Joe Fico IN%"f39651819@rvax.ccit.arizona.edu" Founder of University of Arizona_Hardware And Computer Knowledge Society UA_HACKS@ARIZEVAX