RDB V2.3 (or any other Version 2.x or 3.x) manuals wanted to borrow, buy oder trade for hobbyist use.
Genuine manuals, copies or files (pdf/tiff/...), anything is welcome!
Regards
Ulli
cctech-request at classiccmp.org wrote:
> Go to:
>
> http://members.dodo.com.au/~slappanel555/bios.htm
>
> mike
The PC 5150 revision 2 (10/19/81) dump on that site is bad (first few
bytes are correct but the rest is garbage?). I have a good copy here
(thanks, Jim Leonard and billdeg from http://www.vintagecomputer.net/ )
though I don't have the proper chip numbers from it.
Speaking of AT 5170, if the rtc clock crystal from an AT is missing/cut
off, will it boot at all, or will the RTC chip hold the PIT (and CPU) in
reset forever?
--
Jonathan Gevaryahu
jgevaryahu(@t)hotmail(d0t)com
jzg22(@t)drexel(d0t)edu
I went to the Bletchly Park website and tried to make a small donation (even though I realize the USD only half the value of the Pound). After attempting to create an account, they were supposed to email me a password so I could properly login. I'm not sure why they've not yet send a password, since it did not seem to indicate that folks outside of Britian could not contribute. I can only hope that so many are trying to donate that it's overloaded their servers -- but I'm sure that's a pipe dream... It would at least be nice for the Yanks to show their support.
Regards, Robert Greenstreet
---------Original Message:
Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT)
From: Julian Wolfe <fireflyst at earthlink.net>
Subject: Looking for final rev IBM PC/AT roms.
Hi,
I have a PC/AT that I believe the ROM BIOS has gone bad in.
Does anyone here have the final rev (November 1985?) BIOS ROM image around
that I can use to check my ROM against and/or burn another copy if need
be?
I use this machine on a constant basis so to have it running again would
be a real boon.
Thanks
Julian
*************
Go to:
http://members.dodo.com.au/~slappanel555/bios.htm
mike
Hello all,
I have an old memory patch panel, probably a diode matrix. Estimated to
be from the early 60's, maybe IBM?
Pictures are at
http://i36.tinypic.com/29paqfb.jpghttp://i37.tinypic.com/2h6tzd5.jpghttp://i34.tinypic.com/51wl6h.jpg
I have 3 kinds of diode plugs that fit in the sockets
It has white plugs with one type of diode in it.
It has brown plugs with a different type of diode in it
It has grey plugs that will be a short.
So it appears that each location can have one of four values
open, short, diode1 or diode2.
I am interested to find out more about this - any information such as
documentation, model, or what it belonged to would be helpful.
Thanks!
Bob Roswell
broswell at syssrc.com
Bob Roswell
System Source
broswell at syssrc.com
(410) 771-5544 ext 4336
I'm trying to get a TP 701c I bought off of eBay working to install OS/2
Warp on. But it has a password set in the BIOS. According to the service
manual ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/tpvol2.pdf there are
two Power-On Password Bypass Pads on the bottom of the lower system board,
but no instructions on what to do with them. Do I need to short them out?
If so how? Someone else suggested desoldering the backup battery, but if
I can just short two pads, that would be preferred. Right now its
completely disassembled. I have two other 701c machines, but they each
have their own problems. Worse case if I can't clear the password I can
try to take the display off this one and put it on the 701c that has a
display problem.
Mark
ISP trouble; sorry if this is duplicated.
mike
---------Original Message:
Date: Thu, 24 Jul 2008 15:25:21 -0500 (CDT)
From: Julian Wolfe <fireflyst at earthlink.net>
Subject: Looking for final rev IBM PC/AT roms.
Hi,
I have a PC/AT that I believe the ROM BIOS has gone bad in.
Does anyone here have the final rev (November 1985?) BIOS ROM image around
that I can use to check my ROM against and/or burn another copy if need
be?
I use this machine on a constant basis so to have it running again would
be a real boon.
Thanks
Julian
*************
Go to:
http://members.dodo.com.au/~slappanel555/bios.htm
mike
