Bad nicad for the CMOS, It's loosing a bit here or ther and checksumming.
That forces a bios error.
I had two like that, replaced the nicad and Viola!
From: Chad Fernandez <fernande(a)internet1.net>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Friday, November 02, 2001 3:06 AM
Subject: Re: EISA - was VLB SCSI?
>re-read what he said..... he isn't loosing the configuration, it justs
>wants attention. I have had this happen before too. I just change
>things until it stops :-) I think something gets crossed up when
>changing things around too much, and it asks for F1 to be pressed. You
>can start over from scratch by pulling the battery..... I have had to do
>that once or twice when I really screwed things up, to the point that it
>hung while the bios was loading :-)
>Mike Ford wrote:
>> >Hmmm, that reminds me:
>> >I have an EISA Compaq 486sx at a client site from which I had to remove
>> >an add-on internal modem; ran the diagnostic/configuration program, it
>> >says everything's fine, but when it boots it stops waiting for F1 saying
>> >the configuration's incorrect. Press F1 to continue & everything works,
>> > just a nuisance 'cause it can't restart after a power failure without
>> >someone there to press F1.
>> >Any ideas?
>> Check the cmos battery.
From: John Allain <allain(a)panix.com>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Thursday, November 01, 2001 10:55 PM
Subject: Re: CPU design at the gate level
>>Not to mention relays->tubes->transistors->RTL->...
>Would Transistors enter in to the picture as RTL?
RTL Resistor Transistor Logic. Think very simple, basic gate is the NOR,
power hungry and SLOW. The basic two input NOR is two transistors
and three resistors.
I have a fair collection of RTL (914, 900, 923, MC7xx) from the '67ish time
and have built DMMs and the like using them.
Easy. Just replace the bios battery.
Prolly a lithium button cell the size of a nickle in a holder near the BIOS,
if I remember right.
On Thursday, November 01, 2001 3:57 PM, M H Stein [SMTP:email@example.com] wrote:
> Hmmm, that reminds me:
> I have an EISA Compaq 486sx at a client site from which I had to remove
> an add-on internal modem; ran the diagnostic/configuration program, it
> says everything's fine, but when it boots it stops waiting for F1 saying
> the configuration's incorrect. Press F1 to continue & everything works,
> just a nuisance 'cause it can't restart after a power failure without
> someone there to press F1.
> Any ideas?
> Can give more details off-list if anyone can help.
> ----------Original Message----------
> Date: 1 Nov 2001 1:11:30 +0100
> From: "Iggy Drougge" <optimus(a)canit.se>
> Subject: Re: VLB SCSI?
> ...What I dislike about either system is that it's so awfully software-based.
> IMO you can't really can't call MCA or EISA plug'n'play...
I have the following stuff available for free. But you got to come
and get it. I'm in the SF Bay Area (Mnt View). The systems are
known to work unless listed otherwise:
Intergraph BA23's Nice BA23 style Qbus cases with cool lights and key
PRO350 -w- P/OS Boots. Was VAX Console. Have Docs.
~30 5.25 SCSI Drives Take one or take them all.
Small Dec Corp Cab Has 11/23 logo. Holds 3 BA23's or one BA213
Protracer BBJ -w- Postscript Cart
Makes large printouts. Have manuals and extra supplies
DecStation 5000/200 Pizza Box. Should have docs someplace also.
VaxStation 3100's 2 non-working Pizza boxes. May be able to get one working from both.
HP Apollo 700 Pizza Box and Monitor
Sparc 1 Pizza Box and Monitor
RX50 Compat Drives Got a box of these. They are non-dec but are compatable. They are 1/2 height, black, new in bags. One or two to a customer.
Apple II+ More powerful than a Apple I.
Whoa! 50 bucks, and three years ago?!? Put it in the price guide!
That means my copy of Ahl's MORE Basic Computer Games has got to be
worth at least $100...
I'm outta here & off to check into eBay, but before I go, 'cause I like
you guys I'll offer it here first at $49.95; 84 (Count 'em!) FABULOUS
games for your personal computer! Start haggling <g>
Speaking of you guys, just curious: is this an all-male hobby? No
members of the fairer sex here?
And Ethan, ain't heard back from you; you want these AIM manuals or what?
Date: Wed, 31 Oct 2001 22:26:44 -0800 (PST)
From: Ethan Dicks <erd_6502(a)yahoo.com>
Subject: Re: value of classic DEC machines?
I heard that three years ago when I tried to haggle for a copy of David
Ahl's BASIC Games book at the Dayton Hamvention. They guy said "I can get
$50 for it..." I asked him if he could, what he was doing at Dayton and
why didn't he just sell it on eBay in the first place.
Needless to say, the negotiations did not proceed smoothly. ;-)
I've received a couple SGI Personal Iris' (4D/25 and 4D/35) that I'm trying
to resurrect. After some hunting, I've gotten that elusive keyboard and
mouse for these guys, but no keyboard cables (the 2x PI's take DB9, the 3x's
6 pin mini din). I'm want to make cables, but haven't found a local source
for the necessary parts. Does anybody have any suggestions for an online
Bel Air, MD
I am putting up the following bounties for these software and manuals:
Adobe After Effects 3.x ($30)
Macromedia Sound Edit 16 1.0 ($30)
Macromedia Final Cut ($30)
Macromedia Freehand 5.0 ($30)
GO PenPoint manual (copyright 1992) ($15)
MacWeek August 7, 1995 ($5)
I need original copies of each, disks and manuals. If you've got them, or
can find them, the bounty amount is yours (upon receipt and verification,
shipping to be paid by me).
Please reply directly to me: <sellam(a)vintage.org>.
Sellam Ismail Vintage Computer Festival
International Man of Intrigue and Danger http://www.vintage.org
Not to mention relays-> tubes (valves for tony)-> transistors -> RTL->...
Oops, I see someone else remembers the 914; thanks, Peter.
DTL -> TTL -> LSI -> FPGA, the gates are the same, just the wires got
smaller and the way one manipulates them changed.
> > Where I used to work, there was an IBM PS/2 model 80 that was installed
> > in a closet to do coordination of manufacturing equipment status and
> > utilization reports when it was new. It ran DOS. It was deinstalled in
> > May 2001. It had been running continuously without a crash, except for
> > losses of power, and that only happened twice in the same year, in 1992.
> i wouldn't doubt it, i used to run DOS on my 386 many moons ago, and it
> gave me any trouble. it's great. it's almost entirely useless for doing
> than one thing at a time. when you get to be that simple, stability is just
> about given to you. but once you step up to large multiuser systems you
> all sorts of contention for the same resources that you don't have in a
> tasking environment. so yeah, i believe you are right. i'm not, however
> impressed. :)
> why don't you start throwing mainframe data at us? mainframes run a lot
> the old vaxen, uptimes in the double digit years range.
Heh... depends on the mainframe.
The CDC-6600, the world's first supercomputer, was for many years
rated as having a mine-hour MTBF... turned out that was because a
counter was oveflowing after 9 hours of ticking away, and only
under one particular operating system (SCOPE). But even under the
more-stable KRONOS operating system, the field engineers typically
took it down for an hour each morning. Periodically, they would
polish the platters on one of the disk drive units (in the early
90s, we used to kid about using Lemon Pledge to cure stiction, but
they drives *really* did get polished), while smoking a cigarette.
Ok, I'm drifting away from reliability, so I'd better cut & run.
> I talked to Ken this afternoon.
> He needs 3-4K to cover the back rent on the storage
> and is looking for someone to take all this stuff and
> sell it on eBay for him. He thinks it's worth $100000
Well, hey, if a CoCo is worth $2500 . . .