> > Apparently, this chap has a free PDP11 & MicroVax-II going to
> > a good home...
> >
> The PDP-11/73 will be taking a car journey here next week ... I think -
but
> am not sure - that the Vax is also spoken for.
AAAAAAAAAAAAAAAAAAAARRRRRRRRRRGGGGGGGGGGHHHHHHHHHHHHHHHHHH!!!!!!!!!
Digest blues strike again :-)
Ah well.
Al.
>Of course, the problem is that it's password protected and stuffed if I
>know what it was. Any ideas on how to break in (I suspect after so many
>years I don't really care about the data although it'd be fun to find out
>what I saved there).
>
>This is an Original Messagepad running OS 1.3.
IIRC, if you hold the power button ON (slide the switch down like you are
turning it on, but hold it down), and then press the reset button inside
the battery compartment... that will wipe the system memory. That will
reset the password as well as wipe out EVERYTHING you might have had
loaded.... basically it defaults it back to factory settings. (Although,
I think any system upgrades you installed are preserved).
There is probably a tech note about this on Apple's web site, as it was a
fairly common issue back in the Newton days.
-chris
<http://www.mythtech.net>
Since I have the hood open on my 8200, I thought I'd diagnose the
troubles I've been having with getting a DEBNT working in there.
The 8200 I have came with a KDB50, 4MB RAM and one CPU. Nothing
else (and was $13,000 when my former employer bought it - I just
re-found the receipt). The only serial ports are the four console
ports. No DMB32 or anything like that (not that I would mind locating
one of _those_ either).
Since it first arrived, I put in more RAM, COMBOARDs (that we made)
and a DWBUA (which I'm diagnosing for its own problems). I am now
attempting to use a DEBNT I received some time back. Here's what
it looks like inside...
T1001 KA820 - 8200 CPU
T1010 DWBUA - Unibus adapter
T1001 KA820 - 8200 CPU (not installed at present)
T1002 KDB50 - KDB50 SDI adapter
T1003 KDB50 - KDB50 Processor board
T1019 MS820-BA - 4MB RAM for VAXBI processor
T1019 MS820-BA - 4MB RAM for VAXBI processor
T1019 MS820-BA - 4MB RAM for VAXBI processor
T1008 MS820-AA - 2MB RAM for VAXBI processor
T1008 MS820-AA - 2MB RAM for VAXBI processor
1294 CBSBI - COMBOARD-BI (sync comms front end processor)
T1032 DEBNT - Ethernet and TK50 controller
(I used http://www.stmarks.pp.catholic.edu.au/vax/VAXBI.html for reference)
As you can see, it's a full boat - 16MB of RAM in 5 cards. I'd love to
run across an inexpensive MS820-CA or two. I wouldn't mind pulling the
MS820-AAs out, but 16MB is an OK amount of memory for a single user. I'm
also on a long-term quest for free or nearly free KA825 boards - I'd be
nice to bring this up to an 8350.
The disks are 3rd-party ESDI (1.2Gb each) drives on a 3rd-party ESDI-
to-SDI controller. Very nice. Beats an RA81 hands down. At the moment,
I'm running VMS 5.4 and plan to continue for some time (due to
compatibility needs for the COMBOARD stuff I used to write). I do have
a pair of RA70s I was thinking of putting on it as well.
So... the DEBNT itself fails self-test if there is nothing attached
to the AUI connector. If I attach a DEC loopback connector to the
AUI plug, ISTR I get the yellow LED telling me it passed. If I put
a 10BaseT transceiver on there, the TX light stays lit with no networking
drivers/software loaded.
First and foremost, I'm attempting to verify I put the cables on the
right places. I have 30-pin connector off one end of the AUI cable.
I have a 30-pin connector with one wire attached that seems to be a
jumper block of some kind. At the moment, they are attached to the
BI backplane at block "E", I think because that's what seemed to be
right from looking at where the Lance chip is on the DEBNT. If anyone
has installation instructions, particularly cabling instructions,
those would be very helpful.
Once I get the hardware happy, I'll need to move to software. Since
I want to stay at VMS 5.4, what are my TCP/IP options as a hobbyist?
The only other VAX I have set up with Ethernet is also running 5.4 -
a uVAX-II with a DEQNA. I do have VMS 6.1, but I'm not using it
at the moment.
Thanks for any DEBNT and VAXBI tips and hints. I have some docs, but not
everything. Mostly, I'm drawing on general VAX experience combined with
observation and experimentation. I know my way around the VAXBI bus, but
not around some of the peripherals.
-ethan
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--- Gunther Schadow <gunther(a)aurora.regenstrief.org> wrote:
> Ethan, I'm glad to hear you are making headway in fixing your
> fried board...
I was up to my elbows in the 8200 last night. I think I've identified
the target pin on the DD11DK that is the destination of the damaged pin
in the first place - BB2 which is defined as a ground. This is odd because
on the paddle card, the signal is individually routed over pin 30 of JP2 and
is not tied to anything else on either end.
Having inspected the cable carefully, multiple times, I'm still scratching
my head as to how the damage could have happened in the first place. I
had notes written right on the Unibus cables where they stick onto the
back of the VAXBI - the notations match the docs (I have the DWBUA technical
manual with installation instructions). I can't even see how putting the
paddle card in backwards would have caused a massive problem. I'm afraid
to hook everything up and power it on again before I identify what was
wrong.
OTOH, I did drop the T1010 card in the VAX and look for its presence on
the bus. With the cables disconnected, the card fails self-test (Duh!)
but when I go to read the ident register of the DWBUA (E 20000000), I
get back FFFFFFFF, not the expected value (as documented in the manual).
Having written VMS VAXBI drivers in the past, I can say that this is not
good. The card "shows up" - the POST shows a "-0", so the VAXBIIC of
the DWBUA is detected, but it's exceedingly unhappy. I am suspecting
that the card is more fried than one chip. I'll keep working on it to
see if the card needs a rudimentary amount of attachment to the UNIBUS
to get far enough into its self-test to initialize the ident register,
but I'm not hopeful about it - I think it should show the world what
it is, even if it's unhappy.
Fortunately, I have docs for all of this. At this time, I suspect the
M9313 UET, the DD11DK, the cables and the T1010 card. I just have to narrow
down the list of suspects. I suppose I could drop the card in with the
chip at risk removed and a lead hanging out so I can monitor what's
happening on that pin. The pin itself happens to go to the outer-most
pad on the VAXBI bus, looking at the board, it's the farthest pad
>from the VAXBIIC on the solder side. It goes diagonally in more-or-less
a straight line to a pin of a DEC DC021C, 4 or 5, IIRC (it's not in front
of me here). Either that pin sources a whopping amount of current
>from the DC021 and it was shorted to ground by a bad cable or a problem
in the BA11, or somehow a very wrong voltage came from the BA11 into
that pin. It's the only way I can see how a trace can get cooked and
the chip melted at that pin.
Back to the basement...
-ethan
=====
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In a message dated 3/14/2002 9:54:54 PM Eastern Standard Time,
rschaefe(a)gcfn.org writes:
<< So far, all I've found is two or three references to it on IBM's site.
Nothing comes up for the part number 40G1041. At least, I think it's the
part number-- it looks like all the other part numbers. Pretty sure it's on
topic too, at least the 82365s on the back are dated '92. Anyone know what
the settings are? It's got a 4-position DIP switch for `SLOT ADDR, `IRQ',
and `ROM ADDR', and also a slide-switch marked `BLK1 BLK0'. I wonder what
that does.
I hope I can put this thing to use--it's really pretty nice, at least to
look at. It's got little solenoids to physically lock the cards in the
slot. Only trouble (aside from not knowing what it's set for) is that it's
just a hair too wide to fit into the two computers I've tried it in so far.
Hope I can find something to put it in!
>>
Sounds like it fits the IBM PS/2 E, machine type 9533.
--
Antique Computer Virtual Museum
www.nothingtodo.org
>minespower steel wrote:
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>
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>
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>
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>
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>
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>
> ps; while I await your reply at most by tuesday, if you do not reply, I
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Anyone interested in seeing where the money should be sent? Should be able
to have a bit of fun. I though there had been enough publicity on this one that
everyone would remember the Nigeria scam by now.
Also, do any of the police in Nigeria care? Can police in any other
country trace this sort of thing? Or do the police just say to toss
it and forget it?
Better have a well protected site - they may just be sending back a virus!
