9 Dec
2004
9 Dec
'04
4:43 p.m.
If you can read the disks, this might be of interest
http://home.iae.nl/users/pb0aia/cm/8-525.html
- cabling to use a 5.25" HD (1.2MB) drive in place of an 8"
and
http://nemesis.lonestar.org/computers/tandy/hardware/model16_6000/floppyfix…
ml
hints specific to the TRS80
Found it on the web and have it in the pile of projects to try out on my Z-80
when I get around to it. although I don't know how much longer 5.25 HD
diskettes will be easy to get-
Scott Quinn
P.S. I'm new to Classic Computing, so don't take my word for it-please double
check before risking your machine
9 Dec
9 Dec
10:40 p.m.
New subject: 5-1/4" drive on modern PC
Is there any way to attach and access a 5-1/4" diskette drive on a modern
day PC under either WIN98SE or XP PRO?
11:02 p.m.
New subject: 5-1/4" drive on modern PC
--On Friday, December 10, 2004 07:40:53 -0500 Gene Ehrich
<gehrich(a)tampabay.rr.com> wrote:
Is there any way to attach and access a 5-1/4"
diskette drive on a
modern day PC under either WIN98SE or XP PRO?
Yes, just plug it in like a 3.5" drive. Assuming the drive has the
appropriate jumper settings for a PC, it will work fine. XP Pro will
even change the drive icon accordingly. I have 2 machines set up like
that. If this is the machine's second drive, the only gotcha I can
think of is that a small number of motherboards seem to only have one
drive select, and hence can only support one drive (my Asus is like
that -- I just disabled the on-board controller and used an old one).
--
Pete Turnbull
Network Manager
University of York, UK
11:16 p.m.
New subject: 5-1/4" drive on modern PC
At 01:02 PM 12/10/04 +0000, you wrote:
--On Friday, December 10, 2004 07:40:53 -0500 Gene
Ehrich
<gehrich(a)tampabay.rr.com> wrote:
> Is there any way to attach and access a 5-1/4" diskette drive on a
> modern day PC under either WIN98SE or XP PRO?
I have a combination 3.5"/5.25" drive on my PC with W98Se and it appears
to work fine.
Joe
10 Dec
10 Dec
1:19 a.m.
New subject: 5-1/4" drive on modern PC
Pete Turnbull wrote:
--On Friday,
December 10, 2004 07:40:53 -0500 Gene Ehrich
<gehrich(a)tampabay.rr.com>
wrote:
Is there any way to attach and access a
5-1/4" diskette drive on a
modern day PC under either WIN98SE or XP PRO?
Yes, just plug it in like a 3.5" drive. Assuming the drive has the
appropriate jumper settings for a PC, it will work fine. XP Pro will
even change the drive icon accordingly. I have 2 machines set up like
that. If this is the machine's second drive, the only gotcha I can
think of is that a small number of motherboards seem to only have one
drive select, and hence can only support one drive (my Asus is like
that -- I just disabled the on-board controller and used an old one). 
6:29 a.m.
New subject: 5-1/4' drive on modern PC
There was an attempt to "simplify" connection of multiple floppy drives
(meaning TWO) at one time by adding a "twist" to the cable-- some
conductors in the ribbon are cut out and reversed, which is a sort of
"cable select" for floppy drives.
I seem to recall in this case that one would jumper both drives as drive A
in such a case, or as DS0.
Stupid idea. Use a straight thru floppy cable and jumper one for DS0 and
one for DS1. We get it.
If you intermingle the two drive select ideas you may have problems where
both or niether drives light up and niether can read.
Pete Turnbull
wrote:
Jerome Fine replies:
Under Windows 98 SE on a 750 MHz Pentium III, I installed
BOTH a 3.5" drive (A:) and a 5 1/4" drive (B:)
The ONLY real problem (aside from setting the jumpers and
using the correct cables, etc. was that at one point I
removed the 5 1/4" drive. When I attempted to add the
5 1/4" drive back to the configuration, I seem to remember
that it would NOT accept the second drive. Finally in
desperation, I removed the 3.5" drive as well, then added
back BOTH the 3.5" and 5 1/4" drives at the same time.
That seemed to solve the problem.
I use the 5 1/4" HD 1.2 MByte drive as an RX50 (sometimes
even as an RX33 with a change in the media - ask if there
are any questions) under E11 on the Pentium III so that
I can transfer small files (up to 400 KBytes) from/to a
PDP-11 with the real DEC RX50 drive. On the PC, PUTR from
John Wilson is also able to FORMAT (LLF) the RX50 media.
Sincerely yours,
Jerome Fine
--
If you attempted to send a reply and the original e-mail
address has been discontinued due a high volume of junk
e-mail, then the semi-permanent e-mail address can be
obtained by replacing the four characters preceding the
'at' with the four digits of the current year.
--On Friday, December 10, 2004 07:40:53 -0500 Gene
Ehrich
<gehrich(a)tampabay.rr.com> wrote:
Is there any way to attach and access a
5-1/4" diskette drive on a
modern day PC under either WIN98SE or XP PRO?
Yes, just plug it in like a 3.5" drive. Assuming the drive has the
appropriate jumper settings for a PC, it will work fine. XP Pro will
even change the drive icon accordingly. I have 2 machines set up like
that. If this is the machine's second drive, the only gotcha I can
think of is that a small number of motherboards seem to only have one
drive select, and hence can only support one drive (my Asus is like
that -- I just disabled the on-board controller and used an old one). 
10:17 a.m.
New subject: 5-1/4' drive on modern PC
There was an attempt to "simplify" connection of multiple floppy drives
(meaning TWO) at one time by adding a "twist" to the cable-- some
conductors in the ribbon are cut out and reversed, which is a sort of
"cable select" for floppy drives.
I seem to recall in this case that one would jumper both drives as drive A
in such a case, or as DS0.
I tought it was actually DS1.
Stupid idea. Use a straight thru floppy cable and jumper one for DS0 and
one for DS1. We get it.
The 'IBM twist' also gave you sparate motor-on lines for the 2 drives,
and the original controllers (XT and AT) certainly controlled them
separately. You can't normally get away with an untwisted cable, no
matter how you jumper the drives.
-tony
11 Dec
11 Dec
7:12 a.m.
New subject: 5-1/4' drive on modern PC
Tom Peters wrote:
There was an attempt to "simplify" connection
of multiple floppy drives
(meaning TWO) at one time by adding a "twist" to the cable-- some
conductors in the ribbon are cut out and reversed, which is a sort of
"cable select" for floppy drives.
It was done on an obscure machine called the IBM PC.
If you open up a modern PC with two floppy drives, guess what
kind of cable you will see?
I seem to recall in this case that one would jumper
both drives as drive A
in such a case, or as DS0.
You jumber them both as drive B (DS1).
Can you even find floppy drives any more that are not hard coded as drive B?
Stupid idea. Use a straight thru floppy cable and
jumper one for DS0 and
one for DS1. We get it.
If you intermingle the two drive select ideas you may have problems where
both or niether drives light up and niether can read.
But if you become the de-facto standard, all the clone makers will copy
exactly
what you did. Both the good and bad ideas.
----
Two floppies and 640K are enough for anybody...
10 Dec
10 Dec
12:05 a.m.
New subject: 5-1/4" drive on modern PC
Am 10 Dec 2004 7:40 meinte Gene Ehrich:
Is there any way to attach and access a 5-1/4"
diskette drive on a modern
day PC under either WIN98SE or XP PRO?
Just plug it in - of course you need an 'old' cable
with _two_ connectors of which one should be an
ege type - and don't forget that it has to be
twisted.
Every BIOS I know still supports 5 1/4 - even 360s
and 720s. And Windoze dose for shure.
I have one XP machine with 4(5) drives.
1.44 3 1/2
720 3 1/2 and 5 1/4
1.2 5 1/4
360 5 1/4
Gruss
H.
--
VCF Europa 6.0 am 30.April und 01.Mai 2005 in Muenchen
http://www.vcfe.org/
12 Dec
12 Dec
8:43 p.m.
New subject: 5-1/4" drive on modern PC
On Fri, 2004-12-10 at 15:05 +0100, Hans Franke wrote:
Every BIOS I know still supports 5 1/4 - even 360s
and 720s. And Windoze dose for shure.
Some COMPAQ BIOS pretend to, but don't. I
learned that the TEDIOUS way.
--
Tore S Bekkedal <toresbe(a)ifi.uio.no>
7315
days inactive
7318
days old
9 comments
10 participants
participants (10)
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ard＠p850ug1.demon.co.uk -
gehrich＠tampabay.rr.com -
Hans.Franke＠siemens.com -
jhfinexgs2＠compsys.to -
kth＠srv.net -
pete＠dunnington.u-net.com -
rigdonj＠cfl.rr.com -
Saquinn624＠aol.com -
toresbe＠ifi.uio.no -
tpeters＠mixcom.com