HDTenEightyP/NetNews huggingface dataset:
From: khoo@husc3.harvard.edu
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: 486slc? What is it?
Date: 11 Oct 92 19:06:34 GMT
Organization: Harvard University Science Center

In article <1992Oct10.201157.8163@ucsu.Colorado.EDU>, nelsonis@rintintin.Colorado.EDU (NELSON IAN S) writes:
> What exactly is IBM's 486slc?  I know Cyrix is making a processor called
> the 486slc, but from what I can tell it is just a marketing ploy to sell a 
> 386 with cache.  Is the 486slc in the new PS/2s an IBM made processor or 
> is it a Cyrix processor.  Also, what kind of stats does it have? Which would
> be the better processor to get the slc or the Intel?
> Ian Nelson

The Cyrix processor has a core that runs 1 instruction per clock cycle, just
like the Intel 486 chip.  IMHO it is a 486 chip even though it uses a 16 bit
external bus.  

The IBM 486 SLC processor uses the Intel 486 core, but it too, like the Cyrix
chip uses a 16 bit external path.  I believe the internal cache is slightly 
larger on the IBM chip (it's 1 KB on the Cyrix chip).  Performance should be
comparable.

As near as I can figure these are the relative performance of various chips:
(all chips asumed to be running at the same clock speed)

Chip		Non-Math	Math  	Ext Path      Math Co-pro
Intel 386SX	  0.9 		0.7 	   16	          Ext
Intel 386DX	   1		 1         32             Ext
Cyrix 486SLC	  1.9 		 1         16             Ext
Cyrix 486DLC	   2            1.5        32             Ext
IBM   486SLC       2            ???        16             ???
Intel 486SX       2.5		 NA        32           Not Avail
Intel 486DX       2.5            5         32           Built-In

These numbers are just rough estimates based on what I remember of benchmark
results I have seen.  So take them with a pinch of salt.
Figure given are for DOS programs.  If you are running Novell, OS/2 or other
32 bit operating systems, the 16 bit ext path will have a bigger performance
hit.  (My guess is 50% of 32 bit performance)

Lawrence

-- 
khoo@husc3.harvard.edu      Lawrence Khoo       Computer Consultant
khoo@husc9.harvard.edu      (617) 496-8992    Econ. Dept, Harvard U.
Newsgroups: comp.sys.ibm.ps2.hardware
From: rmorgan@newstand.syr.edu (Richard Babyrock Morgan)
Subject: Re: Low level format PS/2-30's harddisk
Followup-To: Re: Low-level format PS/2-30  
Keywords: harddrive ps/2 model 30 
Date: Thu, 8 Oct 92 10:34:16 EDT

In article <neuleif.1.0@uts.uni-c.dk>, neuleif@uts.uni-c.dk (Leif Nedergaard) writes:
|> Hello netters.	
|> 
|> How do I low level format the harddisk of the PS/2 model 30 ?
|> It is an AT bus type, 20 Mbyte harddisk. I'm aware that on the
|> larger PS/2 models's startup disk is a low level program (Ctrl-A), but
|> not on the model 30.
|> 
|> 
|> 
|> Regards 
|> 
|> 
|> Leif Nedergaard
|> 
|> UNI-C
|> Danish Computing Centre
|> for Research and Education
|> 
|> 		
	I could be wrong, but the hardfile on the PS/2 30 
should be some an IDE.  I don't believe that you are supposed to
low-level format an IDE drive. Why not run Norton or some other
utility to fix your problem?


rm.


_______________________________________________________________________________
RICHARD MORGAN
rmorgan@sunrise					"Others have labored, and you 
rmorgan@mailbox.syr.edu				  have entered into their  
THE LAB 3-5802					   labors."-John 4:38 
---------------------------SYRACUSE UNIVERSITY----------------------------------
Newsgroups: comp.sys.ibm.ps2.hardware
From: rdn8389@tamsun.tamu.edu (Robert D Newberry)
Subject: Windows Multimedia and Micro-Channel
Organization: Texas A&M University, College Station
Date: Wed, 7 Oct 1992 14:40:37 GMT

I've got a Model 80, and my professor wants me to find
some multimedia hardware that supports Microsoft Windows
multimedia extensions.  We'd like to at least find out
about everything that's out there.  In particular,
we want to be able to: control video devices (MCI), 
play video in a window, digitize video, do audio playback
and record.  If there's anything I've missed, we'd probably
like to do that, too.

Here's the problem.  What companies out there market 
appropriate hardware for these actvitities for micro-channel?
I know IBM's got cards (M-Motion, ActionMedia, etc.), but we'd
like to check into third-party companies as well.

Anyone know of companies that support micro-channel with
multimedia cards and Windows drivers?

Thanks.
Rob Newberry
NEWBERRY@PHYS.TAMU.EDU

Newsgroups: comp.sys.ibm.ps2.hardware,comp.sys.ibm.ps2
From: nelsonis@rintintin.Colorado.EDU (NELSON IAN S)
Subject: Re: New PS/2 prices! (approx. education prices)
Organization: University of Colorado, Boulder
Date: Sat, 10 Oct 1992 20:03:24 GMT

What exactly is the 486slc that IBM is offering with some systems now?
Cyrix is making a "486"slc which isn't really a 486, it isn't one of these is
it?  Is it an IBM made 486 clone (like the 386slc?)?  How fast is it and
which should I get the Intel or the slc?
thanks
Ian Nelson
-- 
Pick-up line of the month:
        I could have anyone here, and today's your lucky day cause
        I'm pickin' you.                PGP 2.0 pubkey:
begin 644 pubring.pgp
From: U54345@uicvm.uic.edu (Darius Vaskelis)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Munged video/how do I re-wire my video to run a VGA card?
Date: 12 Oct 92 04:14:16 GMT
Organization: University of Illinois at Chicago

>So?  I still don't see a practical reason for what it does.
>
>the "VGA" games I run/try to ACTUALLY run in 320*200.
>There should not be a problem.  I have 256K Video-Ram
>My monitor CAN scan at VGA resolution.
>
>It seems that I should be able to run them.
>WHY do the companies do this?  There is no REAL difference
>between MCGA and "VGA"(what the games run at).

Let me try and clear things up:

MCGA (Multi-Color Graphics Array) is the video built-in to the planar
boards of the Model 25 and 30.  (8086-based)  It's merely an extension
of the original IBM Color/Graphics Adapter (CGA); it offers two
additional graphics modes: 320x200x256 colors and 640x480x2 colors...
both from a palette of 262,144 colors.  It also had an enhanced (EGA?)
text mode so it looked better than CGA in text mode.  (NOTE: It does not
support EGA graphics mode or 640x480 in more than 2 colors.)

VGA (Video Graphics Array) is a superset of MCGA and EGA... it offers
everything MCGA and EGA (Enhanced Graphics Adapter) has, plus it has an
even higher-resolution text mode, and a 640x480x16 color mode.

Your monitor is quite capable of using VGA graphics modes, it's simply
that you don't have a VGA.  Some software calls the 320x200x256 color
mode a VGA mode because the MCGA and VGA were both introduced at the same
time, and both have this mode in common.

>Guess I amgoing to have to see if I can wire a "VGA" card into this thing.
>
>Does anyone know what wires I should put where(Hopefully want to make
>aVGA-type connector running from the "back" of the monitor to a VGA
>card stuck in a slot)?
>Anyone know how I should go about finding out how to do this?
>
>I figure that it should be just a matter of some re-wiring.

You can use a VGA card with the Model 25, but if I remember correctly, it
was a pain to install.  The official solution was the IBM PS/2 Display
Adapter, but it's been withdrawn from marketing.

- Darius
I do not speak for IBM Corp.
--
Darius Vaskelis (IBM Marketing/Technical Support)
University of Illinois Account Team
One IBM Plaza  15-WAE                    Telephone: (312) 245-3532
Chicago, IL 60611                         Internet: U54345@uicvm.uic.edu
Newsgroups: comp.sys.ibm.ps2.hardware
From: tobe7093@saturn.edu (tobey christophe)
Subject: IBM number needed
Reply-To: tobe7093@saturn.edu
Organization: Sun Microsystems, Inc.
Date: Thu, 8 Oct 1992 14:17:24 GMT


Does anyone happen to know the number for the IBM Educational Fullfillment Center?

Much appreciated...

chris.
From: U54345@uicvm.uic.edu (Darius Vaskelis)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: 486slc? What is it?
Date: 13 Oct 92 14:56:59 GMT
 <718902315snx@ananke.stgt.sub.org>
Organization: University of Illinois at Chicago

>  > The IBM 486 SLC processor uses the Intel 486 core
>
>No. IBMs 486SLC2 is a modified clock doubling version of IBMs 386SLC
>which is little more than a plain 386SX chip with internal cache added.

Not quite correct on both counts.  I think you are confusing the IBM SLC
processors with the Cyrix Cx486SLC CPUs... they are _not_ the same.

Both the IBM 386SLC and 486SLC2 are _VERY_ much like Intel 486 CPUs, and
the only thing that they have in common with the Intel 386SX is the
packaging.  IBM's SLC processors execute instructions in a 486 fashion,
with instructions taking the same number of clock cycles on Intel 486
CPUs and IBM SLC CPUs.  The IBM 386SLC has the same 8K four-way set-
associative cache which is accessed a full 32-bits at a time internally.
The IBM 486SLC2 has a doubled clock speed, doubled cache, and the full
Intel 486SX instruction set, whereas the IBM 386SLC only has the Intel
386 intruction set.

- Darius
I do not speak for IBM Corp.
--
Darius Vaskelis (IBM Marketing/Technical Support)
University of Illinois Account Team
One IBM Plaza  15-WAE                    Telephone: (312) 245-3532
Chicago, IL 60611                         Internet: U54345@uicvm.uic.edu
Organization: University of Illinois at Chicago
Date: Monday, 12 Oct 1992 22:41:38 CDT
From: Darius Vaskelis <U54345@uicvm.uic.edu>
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: What's Special about PS/2?

>  When you say 'very fast SCSI' do you mean that the performance gains
>come from the SCSI controller or the hard disk?  Is the controller
>some variant of SCSI-2?

Fast SCSI means to the user that data goes back and forth to the hard
disk faster than other computers.  :)

The SCSI interfaces on newer PS/2s are bus-masters, which means that they
can transfer data back and forth (supporting such goodies like
simultaneous reads and writes) with no help from the CPU or regular DMA
channels.  This leaves the CPU/DMA free to work on other tasks.  The
SCSI on the 56/57SLC2 is right on the local bus, and on the 76/77 it's
on the (32-bit) Micro Channel bus.  It is SCSI-2 compliant, and the data
channel on the 76/77 supports transfer speeds of up to 16.6MB/sec.  Also,
the new SCSI drives have extremely fast data transfer rates... it all
adds up to an extremely speedy and efficient hard disk system.

>  Also, you say that these machines have 'high-performance CPUs'.  I
>note that the machines are simply 80486SXs (not DXs) running at 33Mhz
>(or DX2s at 33/66) - these machine lack second level processor caches.
>So, strictly speaking, the machines do have 'high-performance CPUs' -
>just like the 258 other 33Mhz 80486-DX and -SX machines out there.
>Are the machines really 'high performance' in comparison to the other
>80486-class machines or simply in comparison to IBM's previous offerings
>at this price level?

The 76 and 77 use the Intel 486SX/DX2 CPUs... that's all I meant by
high-performance.  Stricly CPU-wise, it's similar to other systems, but
when you add some disk access and graphics access (did I mention full
32-bit bus-mastering XGA-2 graphics?) it does add up to world-class
performance, especially in the age of the GUI.  How about 32-bit DMA
controller and full DMA-capable serial and parallel ports so that you
don't need interrupts to handle them?

In addition to the 76/77, I also had in mind the 56/57SLC2 machines that
come with the IBM486SLC2 CPU.

One way to tell the quality of the machines is to check the warantee
against others.  The PS/2 Premiums come with three year on-site service
from IBM, which has an average four hour response time.  I think that
speaks for itself.

As for benchmarks, the only ones I kept in the office were for the XGA-2,
which was compared to QVision and some Local Bus SVGAs, and it came out
as the best overall performer.  Keep an eye out on your local favorite
magazine for benchmarks from third-parties on the 56/57SLC2 and 76/77...
I think you'll be presently surprised.

- Darius
I do not speak for IBM Corp.
--
Darius Vaskelis (IBM Marketing/Technical Support)
University of Illinois Account Team
One IBM Plaza  15-WAE                    Telephone: (312) 245-3532
Chicago, IL 60611                         Internet: U54345@uicvm.uic.edu
From: sl31+@andrew.cmu.edu (Stephen M. Lacy)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: A mouse for the PS/2
Date: 6 Oct 92 19:29:47 GMT
Organization: Junior, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA

Excerpts from netnews.comp.sys.ibm.ps2.hardware: 7-Oct-92 Re: A mouse
for the PS/2 by Kevin Brokaw@oblivion.cs 
>   I've been using a Logitech mouse on my PS/2-80 for a long time
now... I first
> bought it to use on my XT - it was about 4 years ago, so I don't know if they

I just bought the same thing less than a year ago.  Logitech has three
"flavors" of its mouse -- Serial, Bus, and MousePort-Serial.  The latter
is what I have, and it has the little 9-pin to round-thingy connector so
it'll fit in your mouseport.  Its PS/2 mouse (read "Microsoft")
compatible, so it works just fine with OS/2 (although it doesn't
recognize the third button...bummer) It was ~$60 from the campus
computer store.  I wouldn't use any other mouse. 

Steve


"A lifetime of accomplishments, of which the dirt knows none." - Poi Dog
Pondering
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: What's Special about PS/2?
From: Peter J. Natali <MBAPN@rohvm1.rohmhaas.com>
Date: Mon, 12 Oct 1992 11:57:34 EDT
Organization: Rohm and Haas Company

Date: Sunday, 11 Oct 1992 23:55:56 CDT
From: Darius Vaskelis <U54345@uicvm.uic.edu>
Subject: Re: What's Special about PS/2?


>The new PS/2 Premium Line is just incredible... high-performance CPUs
>(all are 486) with high-performance hard disks (with very fast SCSI) with
>high-performance graphics (bus-mastering XGA-2) at an affordable price
>(*REALLY*) and three-year on-site service if it breaks down.  Can't beat
>it.

>- Darius

 Darius:

  When you say 'very fast SCSI' do you mean that the performance gains
come from the SCSI controller or the hard disk?  Is the controller
some variant of SCSI-2?

  Also, you say that these machines have 'high-performance CPUs'.  I
note that the machines are simply 80486SXs (not DXs) running at 33Mhz
(or DX2s at 33/66) - these machine lack second level processor caches.
So, strictly speaking, the machines do have 'high-performance CPUs' -
just like the 258 other 33Mhz 80486-DX and -SX machines out there.
Are the machines really 'high performance' in comparison to the other
80486-class machines or simply in comparison to IBM's previous offerings
at this price level?

  These new machines do sound interesting.  Do you happen to have any
independent benchmarks that compare the performance of these machines
to other machines in their price class?

  Thanks.

Pete Natali
From: neuleif@uts.uni-c.dk (Leif Nedergaard)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Error on PS/2 55sx
Date: 8 Oct 92 16:51:30 GMT
Organization: UNI-C Lyngby, DK

In article <tomcat.718345582@cwis> tomcat@cwis.unomaha.edu (Jeffrey S. Jo) writes:
>Path: uts!dkuug!sunic!mcsun!uknet!doc.ic.ac.uk!agate!spool.mu.edu!olivea!charnel!rat!usc!sol.ctr.columbia.edu!news.unomaha.edu!cwis!tomcat
>From: tomcat@cwis.unomaha.edu (Jeffrey S. Jo)
>Newsgroups: comp.sys.ibm.ps2.hardware
>Subject: Error on PS/2 55sx
>Message-ID: <tomcat.718345582@cwis>
>Date: 6 Oct 92 04:26:22 GMT
>Sender: news@news.unomaha.edu (UNO Network News Server)
>Organization: University of Nebraska at Omaha
>Lines: 17



>I don't know if this is the correct place to post this, but I was wondering
>if anyone knew the following error codes from my IBM PS/2 Model 55sx 386.
>I get them every now and then.
>        110
>        113

>Any help is appreciated and a remedy would be gratefully accepted, as long
>as it doesn't cost me an arm and a leg.  Thanks in advance!!


>--
>|Jeffrey S. Jo                   |               F-14D Tomcat                 |
>|Computer Operations             |             VF-142 Ghostriders             |
>|University of Nebraska at Omaha |       United States Navy F-14 Tomcat       |
>|tomcat@cwis.unomaha.edu         |              Fighter Squadron              |
>I don't know if this is the correct place to post this, but I was wondering
>if anyone knew the following error codes from my IBM PS/2 Model 55sx 386.
>I get them every now and then.
>	 110
>	 113
>Any help is appreciated and a remedy would be gratefully accepted, as long
>as it doesn't cost me an arm and a leg.  Thanks in advance!!

From my list I get the following:
	110 :  - Planar Parity
	113 :  - DMA arbitration time out	or
	       - Test 80386 new instruction
Hope this help you just a little bit.

Regards

Leif Nedergaard

UNI-C
Danish Computing Centre
for Research and Education
From: fein@epg.nist.gov (Aaron Fein)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Can I put a 30 MB HD in a mod 50?
Date: 15 Oct 92 19:53:26 GMT
Reply-To: fein@epg.nist.gov
Organization: NIST

I successfully swapped a 60 MB HD from a mod 50 to a mod 55sx but am 
having trouble getting the 30 MB HD from the mod 55sx to work in the mod 50.
The model number of the 30 MB HD is WD-336RT.  The autoconfigure won't work
and I have no idea what type to enter for the configuration.

Thanks in advance,
Aaron
Newsgroups: comp.sys.ibm.ps2.hardware
From: tnnguyen@tera.cs.umn.edu (Trung N. Nguyen)
Subject: PS2/30-286 Bus architecture and ram
Organization: University of Minnesota, Minneapolis, CSci dept.
Date: Wed, 14 Oct 1992 22:26:14 GMT

Does anyone knows if the PS2/30-286 has an ISA bus or EISA bus?  I know
that it does not have a MCA bus.  Also, I notice that it has four
memory slots, each of which looks like a normal SIMM slot.  Can you use
a regular 1Mx9 SIMMS here or do you have to get the IBM part?  How about
1Mx3 SIMMS?  Any info is appreciated.

				Trung
------------------------------------------------------------------
! Email:                              Phone:                     !
!   tnnguyen@cs.umn.edu                 (612) 625-0409  (Home)   !
!   tnnguyen@cdr.lter.umn.edu           (612) 625-7930  (Work)   !
!                                       (612) 624-7807  (Office) !
------------------------------------------------------------------
From: egharbaw@nmsu.edu (Eihab Gharbawi)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: RE: 3.5" drives
Date: 9 Oct 92 04:43:46 GMT
Article-I.D.: dante.EGHARBAW.92Oct8214346
Distribution: comp.sys.ibm.ps2.hardware
Organization: NMSU Computer Science

Greetings,

I sounds to me like you're formating DSDD disks on a PS/2 for 1.44
capacity.  The drives in the PS/2s don't check for the second notch on
the diskette while others normally do.  If the diskette is formatted
for 1.44 but the drive can't find the second notch it won't read it.

Is that your case?

Hope that helps!

eihab
From: richardw@hub.parallan.com (Richard Walter)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: PS/2 Mouse Port
Date: Wed, 07 Oct 92 17:37:33 PDT
Organization: Parallan Computer, Mountain View CA

The PS/2 Mouse Port and the Keyboard port use the same signals:

Look at the port with the notch pointing UP.  Going Clockwise around
the connector starting at "1:00" position the pins are numbered:
        5, 3, 1, 2, 4, 6

The signals are:
        1: Data
        2: Reserved
        3: Ground
        4: +5V
        5: Clock
        6: Reserved

The data and clock lines are used to send/recieve messages to/from the
mouse/keyboard.

The clock and data lines are driven by open-collector drivers with a
10 Kohm pull up. (These are on the PS/2 motherboard, not the mouse.)

Information is transmitted by an 11 bit stream of data on the Data line
while the clock line is used to time the data bits.  The bits are:
        1: Start bit
        2-9: Data bits (2 is least significant)
        10: Parity bit (odd parity)
        11: Stop bit

If this sounds like it might interface to your computer, (or if anyone
is really interested), send me a line and I'll type in the complete
protocol used for sending/receiving and the list of commands which
are sent/received.

Hope this helps...
-Richard Walter
richardw@parallan.com
From: jiliu@silver.ucs.indiana.edu (Jian Liu)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Wanted: high density 3.5" floppy drive for my Model 50Z
Date: 17 Oct 92 02:56:57 GMT
Article-I.D.: usenet.Bw8w6x.FCB
Organization: Indiana University

The subject says it all.  The floppy drive is dying, but I still want
to cling to this old toy for a while.  Anyone give me an offer?

Jian
Organization: University of Illinois at Chicago
Date: Sunday, 11 Oct 1992 23:26:38 CDT
From: Darius Vaskelis <U54345@uicvm.uic.edu>
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: 486slc? What is it?

>What exactly is IBM's 486slc?  I know Cyrix is making a processor called
>the 486slc, but from what I can tell it is just a marketing ploy to sell a
>386 with cache.  Is the 486slc in the new PS/2s an IBM made processor or
>is it a Cyrix processor.  Also, what kind of stats does it have? Which would
>be the better processor to get the slc or the Intel?

The IBM 486SLC and IBM 486SLC2 are real 486s... they are functionally
similar to an Intel 486SX except that is has a 16-bit data bus (vs.
32-bit on the 486SX) and a 16K four-way set-associative cache (vs. 8K on
the 486SX).  The SLC2 runs internally twice as fast than the rest of the
system, similar to the Intel 486DX2 and 486 OverDrive CPUs.

From my observations, a 486SLC benchmarks almost identically to the 486SX
CPU.

Why buy a 486SLC/486SLC2:
 Costs less
 Upgrade path in future for more performance

Why buy a 486SX:
 Need to address more than 16M of RAM
 Upgrade path to 486 OverDrive
 Better floating-point performance possible with 487SX

The IBM 486SLC/486SLC2 does not have anything in common with the Cyrix
Cx486SLC other than a similar name.

- Darius
I do not speak for IBM Corp.
--
Darius Vaskelis (IBM Marketing/Technical Support)
University of Illinois Account Team
One IBM Plaza  15-WAE                    Telephone: (312) 245-3532
Chicago, IL 60611                         Internet: U54345@uicvm.uic.edu
Newsgroups: comp.sys.ibm.ps2.hardware
From: altman@cs.sunysb.edu (Jeff Altman)
Subject: Re: BUS TIMEOUT in Win3.1 with .WAVs on sound blaster/MCV
Organization: Dept of Computer Science, State U of NY at Stony Brook
X-Newsreader: Tin 1.1 PL5
Distribution: usa
Date: Wed, 14 Oct 1992 14:08:52 GMT

Jay Jeffrey Schuh (jjs@csd4.csd.uwm.edu) wrote:
: 
: 
: 	I receive a Microchannel Bus Timeout....System Error
: 	whenever I try to play a .wav in Windows 3.1.  Does
: 	anyone have a similar problem or quick fix for the
: 	situation.  Creative Labs notes say to start Windows
: 	in standard mode then exit and begin in Enhanced mode
: 	but this hasn't worked.
: 
: 	Thanks in advance
: 
: 	Jay
: 
: 	jjs@csd4.csd.uwm.edu
: 

Do you have a 55sx and are you using 1mb or 4mb SIMMs on the planar
board?  If so, then you are probably experiencing one of the 55sx's
Memory related MicroChannel bugs.  Try using only 2mb SIMMs on the
planar board and see if that helps.



--
- Jeff  | Altmania Productions     |================================|
 ~   ~	| P.O. Box 849             | jaltman    @ ccmail.sunysb.edu |
 * | *	| East Setauket, New York  | altman     @ sbcs.sunysb.edu   |
\_____/	| 11733                    | 71530.3252 @ CompuServe.COM    |



Newsgroups: comp.sys.ibm.ps2.hardware
From: jmtroan@eos.ncsu.edu (JOHN MICHAEL TROAN)
Subject: Re: Two hd's to 55sx
Originator: jmtroan@c00754-400wi.eos.ncsu.edu
Reply-To: jmtroan@eos.ncsu.edu (JOHN MICHAEL TROAN)
Organization: North Carolina State University, Project Eos
Date: Wed, 7 Oct 1992 14:13:25 GMT


I work for IBM in a lab, so I have a great deal of PS/2 experience.

The answer simply is probably not.  What we ended up doing is installing a SCSI
controller with an EXTERNAL SCSI drive (requiring a 3510 or 3511 SCSI enclosure).

Purchasing an ESDI controller card for MC is NOT cheap as MC prices tend to
be a lot higher than ISA prices.

John...