test-drb September 2009

test-drb@ccmp.vtda.org

163 participants
196 discussions

HDS Xterms (was Re: NCD 19r monochrome Xterm)

by ethan.dicks＠gmail.com

On 9/1/09, Ian King <IanK at vulcan.com> wrote: > I'm interested in hearing more about how you got the HDS slabs running. I > ended up with a couple when I got my VAX 4000/300, and I recall not being > able to figure out how to blank or overwrite the password. What > documentation I could find was no help. Do you have any words of wisdom? It's been over 6 years since I did this, and I don't have any ancient lore to draw from (back in the day, we didn't have Ethernet at work - everything was character terminals), but I don't recall anything specifically password related. Perhaps mine were never set or perhaps we have different models. The only issue I ever had was finding the right stuff to stick into the tftp repository to feed it when it was coming up. I am pretty sure I was running it off of a SPARCstation of whatever flavor I owned at the time, so once I stumbled across what I needed, I had to incrementally check the tftp logs to see what was being asked for and get it in the right place. I noodled around with a few apps from the Sun, then put it away since ISTR there were some warts with modern apps like Netscape and an ancient X term. It mostly worked, but I was better off logging into the console (in the same room). Sorry I don't have specifics to quote you, but if you want to send me the model number of what you have off-list, I'll check it against what I have and see if they are even the same. -ethan

17 years

Looking for measured power consumption of some old DEC minicomputers

by jgkoomey＠gmail.com

Hello all, I'm doing an analysis of trends in the energy efficiency of computation over time (for details, see the first report listed at http://www.intel.com/pressroom/kits/ecotech) . I'm using standardized performance measure from previous work by Bill Nordhaus at Yale, and then attaching measured power use to the machines for which Bill estimated performance. I got measured power data for the DEC PDP-1, PDP-4, and PDP-8 from Gordon Bell (now at Microsoft, who worked on these machines back in the day) but am seeking measured power use for some of the other machines listed below. I understand that some of these machines may not be unitary and so power measurements are more complicated. I'm interested in the sum of power consumption for the CPU, memory, and hard drives for typical configuration of the machines listed below. Ideally, this power measurement would be taken when the machine is running full bore, but I'll take what I can get. Does anyone have any measured power use handy? Thanks, Jon Koomey Power use Watts 1960 Digital PDP-1 2160 From Gordon Bell 1962 DEC PDP-4 1125 From Gordon Bell 1965 DEC PDP-8 780 From Gordon Bell 1968 DEC PDP-10 (KA10) 1971 DEC PDP-11/20 1972 DEC PDP-11/05 (11/10) 1972 DEC PDP-11/45 1972 DEC PDP-10 (KI10) 1973 DEC PDP-11/40 1975 DEC PDP-11/03 (LSI-11) 1975 DEC PDP-11/04 1975 DEC PDP-11/70 1975 DEC PDP-10 (KL10/DEC2060) 1976 DEC PDP-11/34 1976 DEC PDP-11/55 1977 DEC PDP-11/60 1978 DEC PDP-11/34C 1978 Digital VAX 780 1979 DEC VAX 11/780 1983 DEC VAX 11/730 1983 Digital VAX 750 1985 DEC VAX 11/750 1985 DEC VAX 11/780 1986 DEC VAX 8550 1987 DEC VAX 8350 1990 DEC VAX 6000-210 1990 DEC VAX 6000-460 1993 DEC 7000-610 1994 DEC 10000-610 1997 DEC 8400/5/350 x6 __________________________________ Jonathan G. Koomey, Ph.D. Project Scientist at Lawrence Berkeley National Laboratory Consulting Professor, Department of Civil and Environmental Engineering, Stanford University

17 years

Corestore collection photos

by mross666＠hotmail.com

For your viewing convenience, snapshots of most (~90%) of the larger items from the Corestore Collection have been assembled in one place: http://www.facebook.com/album.php?aid=2029992&id=1528659644&l=4ac3e8f85d Enjoy! Mike http://www.corestore.org _________________________________________________________________ Hotmail? is up to 70% faster. Now good news travels really fast. http://windowslive.com/online/hotmail?ocid=PID23391::T:WLMTAGL:ON:WL:en-US:…

17 years

What PSU for Apple //e Platinum?

by silent700＠gmail.com

I recently picked up the "Platinum" version of the Apple //e (the white one with the numeric keypad.) It appears to have a dead power supply. I see a number of PSUs on ebay and parts sites that are listed as "Apple //" compatible. Does anyone know if the Platinum used a different PSU than the other //e models? Also, did the //e use a different one vs. the //+ ? -- jht

17 years

Ongoing PDP11/34a resurrection attempts - stuck SACK?

by jplist2008＠kiwigeek.com

Greetings all; In my continued efforts to try and get my 11/34a functioning I decided to set up my logic analyser and trap ALL of the 56 Unibus signal lines to see if I could spot anything that was being held asserted when it shouldn't. For reference, my 11/34a is set up like: 1 M8266 -------------------------------------------| 2 M8265 -------------------------------------------| 3 M9301 YJ-----| FLIPCHIP 4 M7856---------------------------| 5 National Semiconductor Memory Board--------------| 6 G7232---------| 7 G7232---------| 8 G7232---------| 9 M9302--------| G7232---------| I only have the basic front-console, so not the lovely button-filled operators console. All the NPR jumpers are in place. All voltages check out. The symptoms are: Unit powers on, RUN light comes on and then quickly goes out. When the BOOT/INIT switch is toggled, again, RUN light on, then out. Clearly the unit is HALTing on something, but I can't work out what and nothing seems to appear on the console. When I analyse the bus the unit follows what, from the Unibus design manual, appears to be a standard start-up procedure. - All signals float (obviously) - All signals cleared, DCLO/ACLO/INIT asserted - 773000 is placed on the Address lines (as configured in the bootstrap) - DCLO negates - ACLO negates - INIT negates, and then immediately: - Address lines are cleared - SACK is asserted I find no mention of SACK being asserted in the Unibus manual in its start-up section. Furthermore, as my understanding goes, SACK should only be asserted when a bus master has accepted a grant and is beginning a transaction cycle. There is NO activity on the request/grant lines, so nothing should be allowed to become bus master, so I think this SACK signal should not be happening. Can anyone with more understanding than me (which, you know, is pretty much everyone else who owns a PDP11) confirm I'm not completely off-base here? I have two M7856s and have switched between them, so if it's the 7856 that's holding SACK, then both of mine are doing it. Elsewise... I think the only thing that could be "sticking" is the processor boards, as the memory card shouldn't be able to assert SACK since it can't become a bus master. If this guess is correct... I'm not really sure how to begin debugging what on the processor board is getting glued. Time to break out those schematics? My thanks to all for your thoughts; - JP

17 years

Need to find a home for a Vax 11/750...

by oldcpu＠rogerwilco.org

Curt @ Atari Museum, on Fri Aug 28 17:41:05 CDT 2009, said: > The 11/750 comes with the TU58 tapes, you understand that, right? I'm > not piece-mealing this out. Yes, that was clear, I just was suggesting that IF those tapes are diagnostics, I'd be interested in an image of them, and would be willing to help image them and then return the originals to the new owner...no problem. Sorry for the confusion. Enjoy it Ian! -- Jared

17 years

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test-drb September 2009