test-drb

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101090 discussions

by rigdonj＠intellistar.net

Can anyone tell me what the POST codes 165 and 221 mean on an IBM PS2 P-70? The CMOS backup battery is good and I've tried to boot from the reference disk but it won't load anything from the disk even though it does read it briefly. Joe

26 years

HP-1000E PSU

by fmc＠reanimators.org

"R. D. Davis" <rdd(a)smart.net> wrote: > One slight problem: I'm told that the PSU is bad. Upon removing the > cover from the PSU, I noticed that there are three plug-in boards in > the PSU, and one empty PCB connector, the second one back from the > front. Is this circuit board supposed to be missing? I've not teted > the PSU yet, as I didn't know if doing so with this (optional? a > regulator for a voltage this system doesn't need?) board removed will > damage it. Is it safe to power it up with this board missing? Very likely. I pulled the 1000E Installation and Service Manual (HP p/n 02109-90015, dated Nov 1979) and it would appear that the board your power supply is missing is p/n 5061-1349, the battery backup board, which is only present in 1000Es with the battery backup option. To confirm this, there should be another board, 5061-1351, in another slot in the power supply -- this is a jumper board that is used in place of 5061-1348, the battery charger board, when the battery backup option is not present. I think you'll find this latter board in the slot closer to the front. Looks like the installer is expected to adjust the power supply with it installed in the computer. Test points are on the crossover assembly (A6) that is visible when you remove the top cover, and the main adjustment is the +5V ADJ potentiometer that is visible on the power supply board that is partially exposed when you lower the front cover: it's the one that is under the LOCK/OPERATE switch. Supply voltages are: supply v max cur upper lim lower lim test point +5V I/O 50A 5.25Vdc 5.00Vdc A6 +5V +5V M 4.5A 5.25Vdc 5.00Vdc A6 +5M +12V I/O 2.5A 12.6Vdc 11.4Vdc A6 +12V +12V M 2.0A 12.6Vdc 11.4Vdc A6 +12 M -2V I/O 4.0A -2.2Vdc -1.8Vdc A6 -2V -12V I/O 2.0A -12.6Vdc -11.4Vdc n/a -12V M 250mA -16Vdc -9Vdc A6 -12M (unregulated) +30V I/O 250mA 42Vdc 22Vdc A6 J2 pin 4 (unregulated) The general thing to do at initial checkout is to adjust the +5V ADJ pot 'til the first of these is at +5.15 +/-0.05 volts, then check the other voltages to make sure they're within range. OK, so what about troubleshooting? There's a flowchart, which I'm not going to try to turn into ASCII, but here's the first question after you turn the machine on: are fans running? Beyond that...well, this flowchart looks like it's intended to help you troubleshoot to board level and in some cases transistor level. So supposing the fans are running, the next questions are whether +5V is present at the crossover board test point, and whether it is adjustable as described above. Feel free to ask questions, I'll keep the manual out for the next few days. -Frank McConnell

26 years

How do you finance/afford your computer collection?

by dhquebbeman＠theestopinalgroup.com

> I'm interested in hearing how others on this list afford to > maintain and expand their collections. Especially people like > John R. Keys. 8-D Basically I take money out of my budgest > and buy something when it strikes me. Lately, Ive actually > turned down some of the more popular computer models because > I either have one or more, or space is at a premium. I also > pay monthly for small off-site storage to hold some machines > as I'm reaching over 150 computers+accessories now. Is it > feasible to start a non-profit org to help pay for some of > the costs one incurs while enjoying this hobby or how would > one solicit donations? I am reluctant to become too > commercial or plaster my domain with ads. Ok... what you said... (in other words, ditto...) plus: I rob Peter to buy Paul... I sell family heirlooms (not yet, but it could happen) I sell items from the collection that mean less now than when I acquired them. I look for one-off consulting jobs that involve little or no work and put a small stipend in my pocket. I know when the yearly bonus is coming, and make certain I make the grade. I eat TV dinners instead of grazing at China Buffet; I avoid the temptation to order a pizza to be delivered; I stop buying grocieries onesy-twosy at the Dreary Mart and haul my ass down to Sam's and get a reasonable price. When I'm really desparate to acquire something, I even go back to making iced tea instead buying soft drinks; I can get a fifth of V.O.B. for the price of a pint of Maker's Mark, so I do that. I skip repairs to the Audi; on this one, the law of diminishing returns will kick in soon. Probably other ways I can't think of right now... -dq

26 years

DEC MUX cables free

by thompson＠mail.athenet.net

Recently I came across a variety of DEC QBUS MUX cables, and they are available at the cost of shipping. I have several BC19B-12 cables which go from the CXY-08 MUX to 4 DB25 RS-232 ports. I seem to recall someone from the list wanted one of these a while back. I also have large number of BC16D cables which connect a CXA-16 MUX board (the one without the full modem control lines) to the H3104 8 port banjo MMJ patch panels (also available). Let me know if any of these interests you. paul

26 years

"IBM's 360 and Early 370 Computers"

by mrbill＠mrbill.net

I've got a in-good-shape copy of this book, which I enjoyed very much- anybody out there an IBM fan, want this book, and have something interesting to trade for it in turn? Bill -- +-------------------\ /-----------------+ | Bill Bradford | www.sunhelp.org | | mrbill(a)mrbill.net | www.decvax.org | | Austin, Texas USA | www.pdp11.org | +-------------------/ \-----------------+

26 years

Any AS/400 experts around?

by eric＠brouhaha.com

I'm now the proud (?) owner of an old AS/400, Type 9406 Model B45. Assuming that when we managed to let the rack fall on its side that we didn't destroy it; this is yet to be determined. Anyhow, I have very little (bordering on no) clue about AS/400s, so if anyone else knows about them, tips, advice, help, or the like would be greatly appreciated. The system came with about twelve Type 9332-600 disk drives (600M each), a Type 9348-001 nine-track drive (which is an HP 88780 with a custom front panel), and two terminals (but only one keyboard). It appears that the disks and tape drive are differential SCSI devices with Sun-style 50-pin D-sub connectors. I vaugely recall reading in the past that AS/400s use a weird sector size that is not a power of two; most high-end SCSI drives can be reformatted for alternate sector sizes. The CPU box contains: part feature upper lower slot number number connector connector function ---- ------- ------- --------- --------- ---------- 1 66X4709 3060 16M memory 2 66X4709 3060 16M memory 3 66X4490 3055 8M memory 4 21F5132 2513 processor? tamper seals! 5 93X2120 2514 ??? 6 93X2701 2601 50 female tape interface 7 93X2709 6110 50 female disk interface 8 46F4141 6130 ??? 9 26F5028 6031 50 male 50 male ??? 10 59X4270 6040 25 female ??? 11 93X2737 6110 50 female second disk interface? 12 blank panel 13 blank panel I guess that one of the cards in slot 9 or 10 must be an interface to terminals or to a 3174 terminal controller or the like. The IBM AS/400 web site doesn't seem to have any info on hardware this old. I'd really like to get an ethernet interface. I got factory-sealed 9-track tape distributions of two different releases of OS/400, four tapes each. I gather that there's some sort of license key needed for the software, so I have no idea whether I'll be able to install it. Naturally when I got the machine the seller didn't make any arrangements for a license transfer. For the price I paid I suppose it would be unreasonable to ask them to jump through hoops to do such a thing.

26 years

OT: 911 (was Re: A Great Find & A Defense of E-Bay)

by mcguire＠neurotica.com

On June 16, Chris Kennedy wrote: > > Well, since you mentioned it, the '95 car I mentioned above is a > > Porsche 911...a car that has changed very little over the years since > > its introduction. > > I suppose it depends on what you define as "changed very little". '71, '73, > '74, '76, '78, '82 and '85 all introduce significant chassis changes. > The liquid-cooled current production engine has only passing resemblance > to the air-cooled precursors and the transaxle has seen radical changes. > About the only thing that is really constant about the car is the shape, > the transmission-in-front-of-differential-in-front-of-engine-layout > and the organization of the engine as a boxer-six. Oh, and the location > of the ignition on the left-hand side of the wheel :-) > > Look hard enough and almost every bit has been radically revisited, which > coupled with the amazing ability to graft in stuff from the 930/34/35 and > even a few 928 bits, makes for *all sorts* of fun for those of us who get > geeky over 911s... :-) When I say "changed very little" I meant compared to certain other models of car we see on the roads these days. Certainly there are dozens to hundreds of changes every year or couple of years...I have an '83 and a '95, and they're very different cars. But, to the non-911-geek, to see them sitting next to each other in a parking lot, they're damn near identical. -Dave McGuire

26 years

ID'ing VAX Boards

by jbmcb＠hotmail.com

I pulled a bunch of VAX boards out of an, I think, 8200 that was destined for the scap heap. How do ID these things? They are VAXBI and VAXBI-A, or whatever the CPU bus is. I've got a BUNCH (Around 15) I've ID'd one as a TK-50 Controller (It says it is) and an ethernet controller (DEBNT) Any help would be appreciated.

26 years

by jrkeys＠concentric.net

As stated long ago and as printed in the newspaper article done on me, my goal is to open a museum sometime in the very near future. I'm trying to get corporate funding and grants to get it off the ground. Right now I have stuff stored everywhere, such as 1800 sq ft warehouse in Houston (full), a 10x15 storage unit in Houston, two bedrooms in a house in Houston, 4- 10x15 and 1-10x20 storage units here in St. Paul, a one car garage full here, one bedroom full here in the apartment, and 5- 3x4x16 storage units in my complex here. I have over 3000 hardware items, over 1500 books, tons of old test equipment, and several hundred other types of items such cups, mousepads, mice, giveaways from trade shows (such as the items you send me each year from the VCF), I have computer art work (paint and photo), computer puzzles, computer toys, robots, and the list goes on. My wife says if I die before the museum is built than this all goes to the trashman. I started this back in 1985 and my dream of a museum started back 1992. But rising a family and working everyday was tops on my list at the time and now the kids are all grown and can go after my dream. I have gotten help from many on this list and hope that I can be of help to some of the new members. Well that enough history for today. John Keys ----- Original Message ----- From: Vintage Computer Festival <vcf(a)siconic.com> To: <jrkeys(a)concentric.net> Sent: Tuesday, June 20, 2000 12:42 AM Subject: Yo > > John, let me ask you: what the hell are you going to do with all the crap > you are collecting? I mean, I collect a lot of stuff, but you seem to be > taking in about 4 times what I have in total every few months. > > How much stuff do you have, where do you keep it all, and what are you > going to eventually do with it? > > More curious than anything... > > Sellam International Man of Intrigue and Danger > ---------------------------------------------------------------------- --------- > Looking for a six in a pile of nines... > > Coming soon: VCF 4.0! > VCF East: Planning in Progress > See http://www.vintage.org for details! > > >

26 years

DEC Vaxstation II GPX needs a home

by vcf＠siconic.com

This person has a DEC VAXstation II GPX that needs a new home. Please contact the original sender directly. They are located in Bellingham, WA. Phone: 360 733 8111 Reply-to: mbennett(a)aerotechsports.com ---------- Forwarded message ---------- Date: Thu, 25 May 2000 14:41:04 -0700 From: Mike Bennett <mbennett(a)aerotechsports.com> To: vcf(a)vintage.org We have a DEC Vaxstation II GPX with a 19 inch VR290 DA monitor. It have Keyboard and mouse. We have since abondoned the unit for smaller faster systems. We are looking to sell or donate the the equipment to any intersested party. We would appreciate ant assistance you might be able to provide. Best regards, Mike Bennett Preident Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... Coming soon: VCF 4.0! VCF East: Planning in Progress See http://www.vintage.org for details!

26 years

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