This is for those folks out there that have the big iron, specifically,
anything that uses 220v. If your machine is at home, and
assuming you don't have a seperate dedicated 220v line, what are
you using to power your machines? Do you tap into the
oven/washer outlet? Just how high did your electric bill increase
by? Any other suggestions?
I recently picked up a box full of PDP 11 cards. Is there a site that
actually describes what the cards do (vs simply a terse description
of what the card is e.g. DR 11-C Interface). There were also some
blue cards from a company called MDB (DR11C, 11W?, MLSI
DRV11C, etc). What type of boards were these?
And lastly. Several of the above boards are in sad shape. They
were left outside so now there pretty dirty (as in literally having dirt
crusted on them, along with leaves and dead/dried critters), any
suggestions on how to clean them up without ruining them.
Thanks
George
OK, maybe it doesn't matter how much RAM V5.5 takes, I'm starting to think
that the VR260 is either sick or dead. Anyone have any suggestions for
dealing with one? The only indication of output is on the middel 2/5th's of
the screen, there is a strip across it. Playing with brightness and
contrast doesn't seem to help any. More disturbing disconnecting the video
cable doesn't seem to cause any change either.
The only thing I'm sure about is that the VCB01, cable and VR260 all worked
when I stuck them in storaage about 3 years ago.
Anyone have any suggestions of things to look at?
Zane
At 06:21 PM 8/29/00, you wrote:
> > > > Dr. Pepper. Flowing freely. By the gallon. Mr. Pibb even better.
> > Classic Coke and Cherry Coke... In grand quantities!
>
>Doesn't anyone drink Jolt anymore?
Nah... too modern! Coke and cold (leftover) pizza. A true hacker classic!
Add some twinkies for that extra 'get yer morning started' boost. B^}
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
Subject: 220v and PDP 11 cards
>This is for those folks out there that have the big iron, specifically,
>anything that uses 220v. If your machine is at home, and
>assuming you don't have a seperate dedicated 220v line, what are
>you using to power your machines? Do you tap into the
>oven/washer outlet? Just how high did your electric bill increase
>by? Any other suggestions?
For all of the PDP11 chassis I can think of off hand they can be configured
for 120 or 240 volt.
I frequently run multiple PDP11 test systems in the office. I did cheat and
dropped a 100A panel behind the racks. This was cheaper and easier than
running numerous 30A drops with L5-30 twistlocks.
One thing you will need to figure on is air conditioning load. It is
amazing how much heat they can generate. This will vary widely on what
system and disks you have.
Warning RA8x drives generate a LOT of heat and suck a lot of power.
Caveat. I support a fair number of commercial end users. My office is
supplied with a 200A service subfed off the house 400A service.
>DRV11C, etc). What type of boards were these?
You need to find one of the PDP11 interfaces manuals. There were several
and what they covered varied with dates published and Unibus vs. Qbus. My
stock of these currently is low. I have given several spare copies to
various list members.
Dan
DO they have any non-DEC minicomputers?
Will J
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When shopping for Twinkies, look for the boxes that are labelled "No PCB's"
Will J
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Real quickie answer...
V5.x wants 4mb minimum to run. It can be tricked into three
but dont try. I'd run just the 8mb board if backplane space is an issue as
that is a comfortable config for 5.5. FYI: more memory helps only a tiny
bit unless the machine is fairly loaded with users/apps.
Allison
------Original Message------
From: healyzh(a)aracnet.com
To: classiccmp(a)classiccmp.org
Sent: August 30, 2000 3:33:29 AM GMT
Subject: VAX/VMS V5.5-2 Memory Requirements
OK, this falls in the stupid question catagory. What are the minimum memory
requirements for VMS V5.5? I'm in the process of resurecting my VAXstation
II/RC and would for some idiotic reason like to leave it in the original
configuration except for the HD (dead RD53). I just got done stuffing the
VCB01 back in and noticed that what I thought was a 8MB RAM board is only a
2MB RAM board. Now here is the idiotic part, I'm threatening to run it in a
3MB RAM configuration, despite having some 4MB and 8MB RAM boards. As a
result I'm wondering what VMS V5.5's RAM requirements are. Unfortunatly
I've not got much in the line of V5.5 doc's so can't look it up.
Zane
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I know this isn't what we're here to discuss, but I was wondering if anybody uses or has experience with a Philips 56K-flex "EasyConnect" modem.
The woman who lives next-door to my Mom, and has for the past 40+ years is a virtual shut-in due to her dependence on oxygen due to her advanced emphysema from years of smoking, an her computer is an important source of outlet and outside-world contact for her. I recently replaced her hard-disk for her, having installed this entire system, bit-by-bit, over a number of years, and it has worked remarkably well until recently. I installed her hard disk and reinstalled the Windows95 (no update to '98 because the OSR-2 version of '95 worked so satisfactorily for her) and everything works beautifully EXCEPT the MODEM.
This model is a Plug-N-Play modem, and slid in effortlessly when I first set it up for her, but her motherboard is not a plug-n-play type of board. It doesn't attempt to go out and manipulate the devices that are out there in order to configure the interrupts and port locations. I'm curious whether anyone has had to solve this sort of problem before and has a solution. I've tried everything I could think of and have had no luck at all. Any reasonable suggestions are welcome.
thanks,
Dick
> Was there ever a tcp-ip stack that ran on a TRS-80 model 100? If so, does
> anyone know where to get such a thing? Man, I get the wierdest
questions...
If anyone has one, it'd be the Packet software originally written by
Keith Petersen (and added to by hosts of others).
hth,
-dq
There is a register at x260h I think that is used to identify and control
P&P devices like that. It has to go somewhere of even a true P&P board
would never find it.
The AMD5x86 is pretty decent but not a pentium, it's a low volatage faster
486dx/100 with bigger internal cache. I have a few here and they are solid
machines.
As to P&P, I have two dell 425sx boxen than run w95 just fine
(nt or linux better!) and never had trouble with any of the better P&P
modems and Eithercards I use despite the BIOS being totally P&P ignorant.
There are such things as junk cards or worse lost media/docs needed to use
them.
Allison
------Original Message------
From: "Richard Erlacher" <richard(a)idcomm.com>
To: classiccmp(a)classiccmp.org
Sent: August 30, 2000 3:29:46 AM GMT
Subject: Re: OT: Philips "Easy-Connect" modem
It happens that this particular modem is the only remaining plug-n-pray card
and, while most of these critters have some sort of driver that makes them
assume some identity, this particular one doesn't. It does have a flash
utility, but even that can't find the thing. Nonetheless, when I put the
modem in a plug-n-play system it identifies itself, but the system can't
find it sufficiently to identify it enough to install it. The install
routine, unlike most, requires that one proceed only after the OS has
announced recognition of the modem, at which point you're supposed to use
the CD that comes with the modem. Unfortunately, though I've never had to
use it before, it doesn't work to do the install now, because it can't find
where the modem is.
This system has been almost totally trouble-free, with the exception that,
since the little old lady that uses it for web surfing and email hasn't
learned how to avoid accumulating junk from the web, her disk space has
gotten so low that the printer driver won't work any longer, so we replaced
here 545 MB drive with a 13.6 GB one. Installing that was somewhat of a
pain, but now that it's in place, it works great. If only one could get a
modem that wasn't plug and play and didn't require a 22 GHz pentium to make
it work.
This box has a 160 MHz 5x86, which is just a sort-of Pentium-compatible
'486. I've got dozens of these "out there" among the pro-bono clientele
I've accumulated over the years and even though they're not the latest,
fastest, etc, you'll have trouble prying the users' cold-dead fingers from
around them. They really like them. I've found 300 MHz Pentium-equipped
motherboards for $40 and not one of these folks wanted to swap 'em. These
old things still have a couple of VLB slots along with a couple of ISA slots
and 3 PCI. My mother has one too, and even she doesn't complain.
Dick
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