test-drb June 2007

test-drb@ccmp.vtda.org

224 participants
486 discussions

by RodSmallwood＠mail.ediconsulting.co.uk

Thanks Rick I'll get the CPU manual from bitsavers. Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Rick Murphy Sent: 06 June 2007 11:49 To: cctalk at classiccmp.org Subject: Re: New DEC problem At 04:43 AM 6/4/2007, Rod Smallwood wrote: >Hi > And now something for all you Decsperts to get your teeth into. >My VAX4000-300 is failing the self test. > >After selecting the language it counts down to 10 and then fails test >C5. > >Does anybody know what test C5 tests. >If its an unterminated DSSI bus thats OK anything else could be a >problem. According to the KA670 Tech Manual (EK-KA670-TM, it's on bitsavers.) the C5 diagnostic is for the system support chip. I don't know if an unterminated DSSI will cause this, but it's plausible. Hopefully this additional information will elicit a more helpful reply. -Rick

17 years

New pcb design for S-100 prototype board available

by RodSmallwood＠mail.ediconsulting.co.uk

Hi Thanks for the positive feed back. Needless to say like all standards S100 had different versions. For example the Northstar Horizion had some active components on the mother board. However if we look at a basic passive (other than power) back plane. What are the potential problems? Firstly the connectors are they available? They had two rows of fifty connections. Spacing pin to pin .125in. Mother board was thicker than the usual 1/16 in for rigidity possibily 3/32 in. Card guides pretty standard but how high? Then the metalwork supporting the card guides. Possible Parts List 1. Double sided S100 motherboard (Say twelve slots) 2. Aluminium base plate drilled for backplane and card guide supports. 3. Twelve double sided 2x50 edge connectors. 4. Card guide support frame. 5. Twenty four card guides. 6. Nuts, bolts and screws etc. Rod Smallwood -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Dan Sent: 03 June 2007 12:59 To: On-Topic and Off-Topic Posts Subject: Re: New pcb design for S-100 prototype board available Rod, I see what you mean. I'm just starting off small right now since it's mainly a hobby. It's mostly to support the existing vintage computers out there. I really don't know what the demand there is for a new S-100 chassis. I suppose that might be a good kit to build with the right parts. I can look into this. =Dan [ My Corner of Cyberspace http://ragooman.home.comcast.net/ ] Rod Smallwood wrote: > Prototype boards are nice but whats really needed is an S100 card cage with back plane and PSU. > Its normal to build the foundations before the rest of the house!! > > Rod Smallwood > >

17 years

New DEC problem

by rick＠rickmurphy.net

At 04:43 AM 6/4/2007, Rod Smallwood wrote: >Hi > And now something for all you Decsperts to get your teeth into. >My VAX4000-300 is failing the self test. > >After selecting the language it counts down to 10 and then fails test >C5. > >Does anybody know what test C5 tests. >If its an unterminated DSSI bus thats OK anything else could be a >problem. According to the KA670 Tech Manual (EK-KA670-TM, it's on bitsavers.) the C5 diagnostic is for the system support chip. I don't know if an unterminated DSSI will cause this, but it's plausible. Hopefully this additional information will elicit a more helpful reply. -Rick

17 years

AT&T dumb terminals available Seattle WA.

by g-wright＠att.net

Have a few AT&T terminals free for local pickup. I'm located in Kent, Wa. South of Seattle. These have been tested. Models 513 and 615. include keyboards (80's vintage) -Jerry Jerry Wright g-wright at att.net

17 years

DECnet and MOP

by RodSmallwood＠mail.ediconsulting.co.uk

Hi It would appear we are saying the same thing. It looks like I got reasonably close and you are confiming that I'll also take it that my interpretation of the relative positions in the OSI model etc. are OK. You imply this anyway. Would you mind answering one or two DECnet questions? Regards Rod -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of dave at mitton.com Sent: 06 June 2007 00:30 To: cctech at classiccmp.org Subject: Re: DECnet and MOP >Date: Tue, 5 Jun 2007 02:32:54 +0100 >From: "Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk> > Subject: RE: Repairing the damage. > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp. org> > ... >I probably failed to make my self clear. > > 1. Yes MOP is part of a whole heap of programs that go to make up > DECNET > > 2. MOP stands for Maintenance Operations Protocol and that > what is was for. > > 3 It pre dates DECnet (Well at lest internally in DEC) MOP is part of the DECnet architecture set, and like DECnet has gone through a number of versions, and releases. It actually underwent a boom in the later years, as Ethernet got cheap and diskless network devices became attractive. It is a simple lower level datagram protocol, and does not need the normal session stack to run. In smarter network devices, a MOP bootstrap can be in the device ROM. All that said; architecture, implementation, and deployment vary with platforms and time. For those that grew up on TCP/IP only (and thus doomed to repeat the past), it is best to think of MOP as the DECnet analog of BOOTP, with a little bit of DHCP and ARP sprinkled in. ... > 8. Its twenty-five years since I was a product manager in DEC SWS. No > wonder I'm a bit hazy on this stuff! > > Regards > Rod Smallwood There's your problem. I was a software engineer for DECnet-RSX, DECnet-PRO, DECnet-DOS, and PATHWorks. I was also the architect of the DAP Protocol v6 and a DECnet Token Ring Datalink. The later included MOP specfications too. I still have copies of all the Phase IV era DNA specs. Dave.

17 years

Got a LISP Machine on Sunday

by jrkeys＠concentric.net

Had a Symbolics 3640 dropped off on Sunday evening along with a Symbolics model OP36-DISP display. Missing are the keyboard, FD, and all the needed cables (power cord also). I opened the front door and saw two hard drives mounted inside. Will also be looking for manuals and some software. Anyone would information please email me. Thanks John

17 years

MODCOMP II Rescue Revisited...

by RodSmallwood＠mail.ediconsulting.co.uk

Hi Well done that guy!! What you have done is both the spirit and the essence of classic computing. You are to be congratulated on both effort and persistence. "A shining light to lead others into the darkness of old computer restoration" I was at DEC (UK) in the 70's and Modcomp would pop up as competition >from time to time. Hasn't that front panel got DEC overtones? Is there a keyboard terminal or screen with it? Rod Smallwood DecCollector -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Lyle Bickley Sent: 05 June 2007 05:07 To: General Discussion: On-Topic Posts Only Subject: MODCOMP II Rescue Revisited... A number of you probably remember me "announcing" in Jan, 2007 that I had rescued a MODCOMP II/12 from a lab here in Silicon Valley. The link for that is below (sorry, it's slow - the pictures are large). http://bickleywest.com/modcomp.htm After a lot of work cleaning up both the CPU and I/O chassis I began checking out the system. It turned out that the I/O chassis was in pretty bad shape. I went back to the lab facility where I found the MODCOMP II - looked through several more buildings - and found another lone MODCOMP II I/O chassis. I went through the "salvage" process again - and finally picked it up about a month ago. It was in a lot better shape than the original I/O unit. And the really great news - it was an identical configuration to my original I/O chassis. After cleaning it up, doing all the usual capacitor, power supply checking - I powered it up - and everything "looked" good - and no bad "cooking" smells ;-) I cabled up the CPU and I/O unit, powered 'em up - and to my amazement the front panel controls seemed to work O.K. I then did the usual hand memory tests - and core memory worked O.K. every location I tested. I then wrote a bunch of small diagnostics (in machine code) - and found that I/O was not easy to code - but I did enough to check that the console in/out ports worked O.K. Today I loaded diagnostic monitors, and diags - and most of the system - including I/O is working! The really good news is that all 64K (words) of core memory passed the long manufacturing memory diagnostic - which even tests for "hot cores" failing. It's been months in the making this critter come alive - but it sure feels great when the diagnostics tell you that you are on the right track :-) Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

17 years

early IDE card on eBay

by chrism3667＠yahoo.com

http://cgi.ebay.com/IDE-Controller-for-Hard-Drive-KS-4-16-Bit-ISA-1989_W0QQ… Anyone have one of these they'd like to sell? I ain't paying $50 though. Funny "Joe" seems to think generic Taiwanese stuff should command that kind of value. And he has a lot of it up for bidding, all priced in a similar outrageous fashion. ____________________________________________________________________________________Ready for the edge of your seat? Check out tonight's top picks on Yahoo! TV. http://tv.yahoo.com/

17 years

Vintage Mac II NuBus video card identification

by lynchaj＠yahoo.com

Hi, I recently came into possession of a vintage video card apparently for a NuBus Mac II. Can anyone help identify it? I do not have a Mac so I cannot plug it into anything. It is a two card video board from Rasterops with an apparent NuBus connector. The boards both say "RASTEROPS CORP MADE IN U.S.A." The main board says "(C) 1987" and the daughterboard says "(C) 1988" The back of the main card says "P.C.B. 0001-0013 REV. XB1" The back of the daughter card says "P.C.B. 0001-0019 REV. 01" There are no visible FCC IDs anywhere on the card but may be buried under the circuitry. I have not disassembled the card. Here are some photos of the card. ?Any information would be appreciated, even confirming what Mac II NuBus video card this model is NOT would be helpful. ?Based on an earlier post on "comp.sys.mac.graphics" with responses and some clues, I suspect it to be a RasterOps 24L card cannot confirm it. http://www.geocities.com/lynchaj/img_3023.jpg http://www.geocities.com/lynchaj/img_3024.jpg http://www.geocities.com/lynchaj/img_3025.jpg Thanks in advance! Andrew Lynch

17 years

New DEC problem

by RodSmallwood＠mail.ediconsulting.co.uk

Hi And now something for all you Decsperts to get your teeth into. My VAX4000-300 is failing the self test. After selecting the language it counts down to 10 and then fails test C5. Does anybody know what test C5 tests. If its an unterminated DSSI bus thats OK anything else could be a problem. Rod Smallwood

17 years

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test-drb June 2007