test-drb January 2007

test-drb@ccmp.vtda.org

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538 discussions

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Draper article in Wall Street Journal

by evan＠snarc.net

The article covers that point.

19 years, 1 month

Motorola chips

by iamvirtual＠gmail.com

I am trying to identify 3 Motorola chips. I searched on the 'net, but I didn't come up with anything. The markings are SCM10071L SCM10072L SCM10073L The chips were produced in mid 1973 and early 1974. All three chips are ceramic and have 28 pins. Thanks for any information you can supply. --barry

19 years, 1 month

VAXstation 3100/76 configured as VAXserver and NetBSD

by compoobah＠valleyimplants.com

I have a old VAXstation 3100/76 I'm playing around with (it's surprising how much faster the VAX 4000/200 "seems" - guess it's better memory and I/O bandwidth). The beastie is not-quite-complete (running it as a VAXserver, and the external SCSI connector has been replaced with a HD-50 that isn't functional- not sure if that's bad wiring or bad SCSI chip), but it does have a full 32MB RAM and all the tests it fails are explainable (?? on the network (since it's not connected, that's expected), ? on the serial lines (no kb/mouse connected there) and the external SCSI (nothing connected and known issues). Anyway-to the question: Neither NetBSD 2.0 or 3.0 will install successfully. They both segfault, usually during install but once I got 3.0 installed and it was very limited functionality. Officially the 3176 is supported, but is NetBSD known to be tempermental? (I'm not sure if it's the VAX or the software - VMS boots fine, but if the system's wonky I won't bother with it anymore). Can't test NetBSD on my other VAX (4000-200), since SHAC isn't supported.

19 years, 1 month

CMD QBUS SCSI

by rescue＠hawkmountain.net

I found the manual for CMD 220 on bitsavers... along with a txt file for the 220A/TM (which is what I have). Couple of things: 1. Does anyone have the full manual digitized (or a hard copy you don't want anymore) that covers the 220A (to be exact, CQD-BV220A/TM) ? 2. In the txt file, it has (formatting neatend... (for fixed point font anyway)): W1 OUT Reserved (F) W2 IN SCSI terminator power enabled (F) W3 OUT Reserved (F) W4 1-2 IN Eprom Size 512-Kbit or 1-Mbit (F) W5 OUT 0 Wait State for Eprom Cycles (F) W6-1 OUT Adaptive DMA enabled (F) W6-2 OUT Adaptive DMA Dwell Time enabled (F) W6-4 W6-5 IN IN 0.8-ms DMA dwell time OUT IN 1.6-ms DMA dwell time IN OUT 3.2-ms DMA dwell time OUT OUT 6.4-ms DMA dwell time W6-5 OUT Block mode DMA enabled (F) W6-6 W6-7 Auto-Boot for LSI-11 systems without Boot Roms OUT IN Auto-Bootstrap address = 773000 IN IN Auto-Bootstrap address = 771000 OUT OUT Auto-Bootstrap disabled (F) IN OUT Auto-Bootstrap address = 775000 W6-8 IN Reserved (F) The W6-4, W6-5 pair I believe should be labelled W6-3, W6-4, as W6-5 is documented twice ... and W6-3 is not documented. Anyone know if my belief/assumption is correct ? Anyone know what DMA dwell time should be used in a PDP11/83 ? Should this board be closest to the CPU, or furthest in a an 11/83 ? Thanks in advance, -- Curt

19 years, 1 month

Datapoint 2200 software ?

by jos.dreesen＠bluewin.ch

Does anyone know of software repositories for the Datapoint 2200 I or II machines ? Jos Dreesen

19 years, 1 month

VAXstation 3100/76 configured as VAXserver and NetBSD

by compoobah＠valleyimplants.com

> Adrian wrote > On Sun, Jan 14, 2007 at 01:12:11AM -0000, arcarlini at iee.org wrote: >> >> The wiring inside the VAXstation 3100-76 may well be "non-standard", >> but the external connector works perfectly well with any SCSI >> cable which physically connects. > > I'm a bit confused. I've got an M76 which I'd love to install a later > version of VMS on (it's currently on 5.5), but everything I've read > has said > that the external SCSI connector is DEC-specific and needs a DEC BC09J > cable > to attach normal SCSI devices to (a cable which I've not yet found at a > reasonable price). Is this not the case? The connector is proprietary to DEC (same one as used in the DECstations), but the SCSI that comes out of it is standard. Since that particular connector hasn't been picked up by anyone else (in that particular sex)- yes, any SCSI cable that physically connects will work. On mine I just pull the lid and connect up whatever I need to the internal bus, although I do have an InfoServer... hmm, possibilities that don't require a screwdriver.

19 years, 1 month

Jumpers for a GSI 2.88MB floppy card

by cclist＠sydex.com

This is a little ISA card (made in USA!) with a separate 34-pin header for a 2.88MB floppy drive. There's a sticker marked "1133-11- 04-9 Model 11". There's a row of jumpers labeled 'B1 B2 B3 B4 PR SE". Anyone got the jumper settings for this thing? I think that PR=primary and SE=secondary and that B1-B4 may be drive types, but confirmation might save some work. Thanks, Chuck

19 years, 1 month

Looking for board for 30GB Quantum Fireball Plus LM

by ethan.dicks＠gmail.com

While the drive is not strictly on-topic, the contents are - I have a 30GB Quantum drive that did not survive the rigors of the APO mail system. I have to admit I was in a bit of a hurry on my way out of Pole and while virtually all of my stuff survived travelling 12,000 miles in the mail system, something must have shifted in my box of hard drives and some of the components on the bottom of the drive are damaged and missing. Sufficient packing materials are hard to come by at the Pole, and I was counting on double-boxing and pink bubble wrap to be enough - it obviously wasn't. I think a neighboring drive must have shifted and rubbed on the circuit board of this one, causing a patch of visible component damage. The drive itself does spin up, and gives the expected pattern of blinks on its lone LED, but the machine does not see it. Given that there are 3 missing resistors of a size smaller than an 805 package (don't know the names of the really wee parts) and a few bent pins on a nearby 104(?) pin 0.5mm pitch QFP, the lack of responsiveness doesn't really surprise me. If anyone on the list happens to have an unhappy 30GB Quantum drive, I'd be interested in its board. The P/N on the lid sticker is an LM30A011. Worst case, if I can find another similar drive and a scan of the area of the board near the LED on an intact drive of the same model, I can probably harvest a replacement chip and some SMT resistors and transplant them. The damaged chip in question is badged Lucent/Quantum, P/N "MS24C13 34". There's no horrible noises from the HDA - typical spin-up/spin-down noises, so I think there may be a chance to get at this drive, if I can repair/replace the board. Yes, I know that drives are cheap these days - I would just like to get at what's on this one. Naturally, the other drives in the box, including the blank 18GB workstation drives, are fine... only my boot drive gets dinged. :-/ Thanks, -ethan

19 years, 1 month

Victor 9000 archive

by chrism3667＠yahoo.com

http://www.issue.org.uk/ Loads and loads and loads of V9K stuph. You'll be like a kid w/a Vic9K in a candy store. be sure and read the "personal note". ____________________________________________________________________________________ Finding fabulous fares is fun. Let Yahoo! FareChase search your favorite travel sites to find flight and hotel bargains. http://farechase.yahoo.com/promo-generic-14795097

19 years, 1 month

cpu world

by legalize＠xmission.com

I haven't seen anyone mention this here before.... <http://www.cpu-world.com/index.html> -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

19 years, 1 month

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test-drb January 2007