                                 README.TXT

		Release Notes for Microsoft (R) OS/2 (TM)

				 Version 1.30.1

		  (C) Copyright Microsoft Corporation, 1991

This document contains release notes for version 1.30.1 of Microsoft OS/2.
Information in this document is more current than that in the manuals.


Contents
===========================================================================

Part	Description
----	-----------

1  Software Installation Information
   1.1 Looping on reboot
   1.2 Partition size limits on FAT
   1.3 Plotter driver

2  Notes on systems
   2.1 Hewlett Packard
   2.2 Northgate Elegance 433e
   2.3 Ball Point Mouse
   2.4 ALR PowerPro 20CSX w/ ST2383a
   2.5 Maxtor LXT200A
   2.6 Unisys Advantage models 
   2.7 ALR and AHA1640s

3  Notes for LADDR (Layered Device Driver Architecture)
   3.1 LADDR drivers included with OS/2
   3.2 Compatibility with non LADDR (monolithic) device drivers

4  IBM Systems
   4.1 Family 3 Machines
   4.2 Core Drives
   4.3 ABIOS patch files
   4.4 IBM PS/2 Mod 70

5  MSNULL Driver

6  LADDR Adaptor Card Support List

7  Dos Box memory and LADDR

8  CD-Rom Support
   8.1 CD Data
   8.2 CD Audio


9  Dual ESDI Controller support

10 OS/2 Hardware Compatibility List
   10.1 Computers

11 Installing Tape Drives and Software


Part 1: Software Installation Information
===========================================================================

The first thing you will notice in this version of OS/2 is that there
are now two installation disks, labeled "Install Disk A" and "Install Disk
B". Multiple install disks are now required due to the large number
of additional device drivers now included with OS/2.

To determine which disk is the proper one for your system you should first
attempt an install with disk A, should this fail try install disk B. If
neither A or B works on your particular configuration please check the 
Hardware Compatibility List or the LADDR supported device list at the
end of this document. You can also check with the manufacturer of your
computer or disk subsystem to find out if you need a special driver
or an OEM specific version of OS/2 for your hardware.

Before installing OS/2 you should make backup copies of all the distribution
disks.  Do not write-protect the distribution disks you use to install
Microsoft OS/2. If you do, OS/2 cannot be successfully installed.


To install OS/2 Insert either Installation Disk A or Installation Disk B into
your A: drive and reboot the system (this can be accomplished by simultaneously
pressing the Ctrl, Alt and Delete keys, once they have been pressed and
released the system should reboot).

For example:

	1. Install one of the OS/2 Installation disks (A or B) into
	   floppy drive A:

	2. Simultaneously press the Control, Alt and Delete keys, when
	   the keys are release the system will reboot.

	3. Follow the instructions when the menu appears on the screen.

Most of the files on these disks are compressed and must be expanded before
they can be used. For OS/2 to work properly, you must install the files
using Installation procedure. You cannot simply copy the files to your 
hard disk.

Note: Compressed files are identified by the trailing @ in the suffix,
      eg. PMGRE.DL@.
       


1.1 Looping on reboot
---------------------
If after installing OS/2 you reboot your system and during the boot process
it reboots itself (infinite loop on booting), you may have selected the wrong
mouse driver. Reboot the OS/2 install disk and using the selective
install procedure select the proper mouse driver for your configuration.
Also see section 2.2



1.2 Partition size limits on FAT and HPFS
-----------------------------------------

The FAT (File Allocation Table) file system and HPFS 
(High Performance File System) have certain limitations
on how large a single partition can be. This limitation is 
2 Gb (gigabytes or 2 billion bytes or 2048Mb).

If you have a very large drive (larger than 2Gb) you would need to
break it up into multiple partitions (<= 2Gb) until you have utilized
the entire disk.

The maximum file size is also limited to 2Gb.



1.3 Plotter driver
------------------
The plotter driver is no longer located on PM Device Drivers
diskettes, it is now found on the Core Fonts Disk and will
need to be installed using the Printer Install Option of the
Print Manager.



Part 2: Notes on systems
===========================================================================


2.1 Hewlett Packard
-------------------

  Using OS/2 with HP SCSI Disk Drives
  -----------------------------------

Use the following information to configure your HP Vectra SCSI PC
for use with OS/2.

To simplify reading, the following shorthand has been applied:

  HBA          =    host bus adapter
  1540         =    HP ISA SCSI HBA
  1740         =    HP EISA SCSI HBA
  boot HBA     =    the HBA that has the boot drive attached to it
  boot drive   =    the hard disk drive you want to boot from
  IDE drive    =    embedded-AT disk drive

* ALL the following criteria MUST be met for your PC to boot from
  a SCSI disk drive.  We recommend that you use these criteria as
  a checklist.

  -  If an ESDI or IDE disk drive is present, you must boot from
     that device.  Therefore, no ESDI or IDE disk drives may be
     present if you want to boot your PC from a SCSI drive.

  -  The boot HBA must have its BIOS enabled and must have the
     lowest BIOS address of all the HBAs.

  -  If the boot HBA is a 1740 in standard mode, it must have the
     lowest index in the table of I/O addresses shown below.

  -  If the boot HBA is a 1540, it must be at I/O address 330h.

  -  If you are using any 1540s or any 1740s in standard mode, you
     must boot from one of them.

  -  If you are using more than one 1540 and would like to boot
     from one, disable the BIOS on all 1540s except the boot 1540.

* Allowable I/O addresses for 1540s and 1740s in standard mode are
  as follows:

  Index   I/O Address
  -----   -----------
    1        330h
    2        230h
    3        334h
    4        234h



Using OS/2 With The HP EISA SCSI Adapter
----------------------------------------

If you purchased your HP EISA SCSI Host Bus Adapter (HBA) before
December 15, 1991, you may need to replace it before you can use
it with OS/2.

To determine if you need to replace your adapter, look at the white
sticker on the large chip below the terminating resistors on the
front of the board.  If it reads "AHA-1740  S23", you DO NOT need
to replace the adapter.  If it reads "AHA-1740  S3", you DO need
to replace the adapter.

To obtain an "AHA-1740 S23", contact your authorized HP dealer or
HP Sales Office and tell them that you need to replace your EISA Host
Bus Adapter.  The HP part number for the "AHA-1740  S23" is 1150-1915.

***If you intend to use more than one EISA SCSI HBA in one system,
   the following system upgrade kits are also required.  Part numbers
   for the system upgrade kits are shown below.

D2226-83005   Vectra 486 and 486/25T BIOS/EASY CONFIG Upgrade Kit
D2237-83002   Vectra 486/33T BIOS/EASY CONFIG Upgrade Kit



Not Supported:  HP Serial/Parallel Card
---------------------------------------

The parallel ports on the Hewlett-Packard 24540A and 24540B
Serial/Parallel Interface Cards are not supported for use with OS/2
1.30.1.  If you need a second parallel port, you will need to use
a third-party serial/parallel card.

Use the information below to help you configure ANY third-party
card to work properly with an HP Vectra PC.  Two examples of cards
tested by HP are also provided.

OS/2 expects parallel ports to be configured as follows:

                        Starting
      Port Name        I/O address       Interrupt
      ---------        -----------       ---------
        LPT1              378h             IRQ 7
        LPT2              278h             IRQ 5

OS/2 does not support an interrupt-driven LPT3.


1.  Everex Magic I/O AT (EV-170)

       Everex          HP
      Port Name     Port Name     I/O address     Interrupt
      ---------     ---------     -----------     ---------
        LPT1          None           3BCh           IRQ 7
        LPT2          LPT1           378h           IRQ 7
        LPT3          LPT2           278h           IRQ 5


2.  DIO-500 Multi-I/O Card

       DIO-500         HP
      Port Name     Port Name     I/O address      Interrupt
      ---------     ---------     -----------      ---------
        LPTA          LPT1            378h           IRQ 7
        LPTB          LPT2            278h           IRQ 5


PM Printer Driver for the HP LaserJet III Family
------------------------------------------------

An OS/2 Presentation Manager (PM) printer driver is available for
the HP LaserJet III Family.  To obtain it, you have three choices:

* The driver is available on CompuServe, in the HP Forum.

* Call HP FIRST by picking up the handset on your fax machine and
  dialing (208) 344-4809 from the fax keypad.  By following the
  directions given by HP FIRST, you can have a driver request form
  immediately transmitted to your fax machine.  (The document ID
  number of the driver request form is 9950.)  This service is
  available 24 hours a day, seven days a week.

* You may request the driver directly from HP Distribution (in USA)
  at (303) 353-7650, Monday through Friday, between 7:00 am and
  6:00 pm (Mountain Standard Time).


Using the HP 670 MB ESDI hard disk drive (D1661A)
-------------------------------------------------

In the past, drive splitting was required for OS/2 to access the
whole of a Hewlett-Packard 670 MB ESDI hard disk drive (D1661A). 
Drive splitting divided one physical disk drive (type 30) into two
logical disk drives (types 28 and 29).

With the BIOS versions shown below, you can disable drive splitting
so that OS/2 can access up to two 670 MB drives.  Each drive must
be specified to be of drive type 54 (do not use drive type 30).

Vectra Model             BIOS Version
------------             -----------------
  486/25, 486/25T        G.03.08 or later
  486/33T                K.03.04 or later

Contact your local HP authorized dealer for more information on
obtaining these BIOS versions.


Using HP Video Adapters
-----------------------

* Hewlett-Packard D2382A Super VGA boards should come pre-configured
  for 8-bit video BIOS ROM mode with Switch 6 in the OPEN (OFF)
  position.  (See the HP Super VGA Board User's Manual for more
  information on switch settings.)

  If you set the board to run in 16-bit BIOS mode, memory address
  conflicts may occur when using OS/2.  This can cause data
  corruption when transferring data to a flexible disk drive. 
  Therefore, we recommend that you leave the HP D2382A Super VGA
  board in 8-bit BIOS mode.

* Some Hewlett-Packard D1180A VGA boards have an HP sticker on the
  rear bracket with the text "VGA D1180A".  If your VGA board has
  this sticker, you can set the board to operate in 16-bit mode. 
  Other HP D1180A VGA boards (D1180A-60011 and D1180A-60012) must
  be used in 8-bit mode with OS/2.

  Therefore, if your HP D1180A VGA board does not have a sticker
  on it, you must open your computer and set the VGA board switches
  to 8-bit mode.  (See the D1180A VGA board documentation for more
  information on switch settings.)

* Hewlett-Packard does not support the HP MultiMode video adapter
  for use with OS/2 1.30.1.


Upgrading OS/2 On A Dual Boot System
------------------------------------

If you are using Hewlett-Packard OS/2 1.21 with dual boot, booting into
OS/2 1.21 prior to installing OS/2 1.30.1 will preserve the dual boot
capability of your system.  Please note that the OS/2 1.30.1 installation
program	will not delete the HPBOOT utility, since this utility is not
compatible with OS/2 1.30.1 you should delete this file.

To boot into Dos from OS/2 you issue the following from the command
line; boot /dos, or to boot into OS/2 from Dos; boot /os2.



Multi-Volume and Volume Expansion Software
------------------------------------------

OS/2 cannot access files in partitions such as:

* Multi-volume partitions created by the HP Multi-Voluming Utility
  for MS-DOS 3.1 and 3.2

* Compatible, extension, or spandrive partitions created by the HP
  Volume Expansion Utility for MS-DOS 3.2 and 3.3


Vectra Speed Switching
----------------------

CTRL-ALT-\ will not switch the speed of your HP Vectra RS or QS PC
when it's running OS/2.  Instead, use the HPMODE command in the
OS/2 DOS Session.  For the HP Vectra 386 and 486 PCs, use the
EXMODE command (which replaces the HPMODE command).


COM3 and COM4 Support
---------------------

To access more than two serial ports, you need to modify your
CONFIG.SYS file to install the driver named COMHP01.SYS. 
COMHP01.SYS is copied automatically to the C:\OS2 sub-directory
during installation and supports up to four serial ports.

In your CONFIG.SYS file, change "DEVICE=C:\OS2\COM01.SYS" to read
"DEVICE=C:\OS2\COMHP01.SYS".  If the line "DEVICE=C:\OS2\COM01.SYS"
does not exist, just add the line "DEVICE=C:\OS2\COMHP01.SYS".

COMHP01.SYS treats COM1 and COM2 exactly the same as COM01.SYS. 
COM3 and COM4 should be configured as follows:

                        Starting
      Port Name        I/O address       Interrupt
      ---------        -----------       ---------
        COM3              3E8h            IRQ 10
        COM4              2E8h            IRQ 11

There are a couple of known limitations concerning COM4:

  1. COM4 is not recognized by the Control Panel, hence a PM
     printer driver cannot be attached to it.

  2. COM4 is not recognized by the SETCOM40 command, hence it
     cannot be accessed from the DOS Session.

In all other respects, COM4 is equivalent to the other serial
ports.  In particular, it is recognized by the MODE command and can
be connected to a shared printer in a LAN Manager server
environment.


External Flexible Disk Drive Support
------------------------------------

Configuring OS/2 to use a third and possibly fourth (i.e.,
external) flexible disk drive takes place after OS/2 is installed. 
You should add one line to the end of your CONFIG.SYS file for each
external drive, in the form:

  DEVICE=C:\OS2\EXTDSKDD.SYS /D:x /F:y

Where:

     x =  2 for the third drive
          3 for the fourth drive
     y =  0 for a 360K drive
          1 for a 1.2 MB drive
          7 for a 1.44 MB drive

See the OS/2 Command Reference for more information on using the
EXTDSKDD.SYS driver.


2.2 Northgate Elegance 433e
---------------------------

There is a bug in the Firmware for this model that prevents the
use of the PS/2 style mouse under OS/2, this behavior is not
found under DOS. You can use this system with no mouse, utilize
a Bus mouse or serial mouse. At the time of this release Northgate
did not have fix for the Rom Bios bug.


2.3 Ball Point Mouse
--------------------

There are problems with early versions of the BallPoint Mouse Driver,
when used in a PS/2 style mouse port.

The mouse pointer may get "stuck" up against the top of the screen
and only move left and right or "stuck" against the right hand side
of the screen and only move up and down. 

Also moving the mouse may cause the task list to appear and disappear.

The fix for this is to get the latest version of the ballpoint mouse
driver from Microsoft. The version required is the driver that ships with
version 8.01 of the ballpoint mouse.


2.4 ALR PowerPro 20CSX w/ ST2383a
---------------------------------

For the ALR PowerPro 20csx, a seagate st2383a ide drive configured as a 
master without a slave will fail, it will function correctly if a second
drive configured as a slave is present.



2.5 Maxtor LXT200A
------------------

There is a compatibility problem with OS/2 and the Maxtor LXT200A drive
that renders it inoperable. There is no fix for this at the present time.
This particular drive is now obsolete and is superseded by the
LXT213A.


2.6 Unisys Advantage models 
---------------------------

The following Unisys models use an Adaptec SCSI controller on the
mother board of the computer.

PW2 Advantage 3206
PW2 Advantage 3256
PW2 Advantage 3336

If you experience difficulties installing this version of OS/2 on 
your computer you will need to contact either your Unisys 
representative or Adaptec to obtain the most recent version of
the AHA152x.BID.

2.7 ALR and AHA1640s
--------------------

The Adaptec AHA1640 as generally available will not work in an
ALR Microchannel PC. You will need to procure special AHA1640s
directly from ALR for use in their systems.



Part 3: Notes for LADDR (Layered Device Driver Architecture)
===========================================================================

3.1 LADDR drivers included with OS/2
------------------------------------
This version of OS/2 include LADDR drivers for the SCSI and ESDI adaptors
in the list below. If you do not find a specific adaptor or the adaptor you
are interested in you should first contact the manufacturer or distributor
of the adaptor or contact Microsoft at the number found on the Hardware
Compatibility list included in the box.

A comprehensive listing of Adaptors that have been tested with these release
of OS/2 are provided in section 6. Please note that all adaptors have
not been tested with all computers in the list, so it is possible that
some combinations of computer systems and adaptors have compatibility
problems.


ABIOS    BID
- Supports IBM Microchannel systems and some clones

AHA152X  BID
- Supports Adaptec 152X series of ISA SCSI adaptors
  Adaptec AHA 1515 
  Adaptec AHA 1520/1522 
  Adaptec AIC-6260 

AHA154X  BID
- Supports Adaptec 154X series of ISA SCSI adaptors
  Adaptec AHA1540/1542 

AHA164X  BID
- Supports Adaptec 164X series of MCA SCSI adaptors
  Adaptec AHA 1640 

AHA174X  BID
- Supports Adaptec 174X series of EISA SCSI adaptors
  Adaptec AHA 1740/1744 

CPQARRAY BID
- Supports Compaq SystemPro IDA adaptors and Compaq Intelligent 
  Array Expansion System
  
DELL001  BID
- Supports Disk Array adaptor from Dell

ESDI-506 BID
- Supports AT compatible ESDI, MFM, RLL or IDE adaptors.

NCR_C710 BID
NCR_C700 BID
NCR_C90  BID
- Supports NCR Microchannel systems

WD7000AX BID
- Supports Western Digital 7000 series ISA SCSI adaptors.
  Western Digital WD 7000AX 
  Western Digital WD7000 Fasst2 

WD7000EX BID
- Supports Western Digital 7000 series EISA SCSI adaptors.
  Western Digital WD7000EX110/210 


DPT201X  BID
- Supports the following DPT SCSI adaptors

   DPT PM2011/90 & 95 
   DPT PM2012A/90 & 95 
   DPT PM2012B/90 

   DPT PM2001/90 & 95 (Runs in only in ESDI emulation mode)

- Supports the following DPT ESDI/MFM/RLL adaptors
   DPT PM3011/70/75/60/65/50/55 


FD8XX    BID
- Supports Future Domain 8 bit SCSI adaptors
  Future Domain MCS-350/700 
  Future Domain TMC-845/850/860/885 

FD16-700 BID
- Supports Future Domain 16 bit SCSI adaptors
  Future Domain TMC-1660/1680 
  Future Domain TMC-1680 


NCR_C700 BID
NCR_C710 BID
NCR_C90  BID
- NCR Microchannel PCs



3.2 Compatibility with non LADDR (monolithic) device drivers
------------------------------------------------------------
If you have devices that use monolithic style of device drivers
it is possible (with certain constraints) to allow these to
work along side the LADDR drivers that are native to Microsoft
OS/2 1.3.

The restrictions are as follows:

For any given adaptor card either a LADDR driver is loaded or
a monolithic driver is loaded, they cannot both share the same
adaptor card simultaneously. For hardware for which no LADDR driver
is available then installation is per the instructions that come
with the device. Typically this results in a line in the config.sys
that resembles the following:

DEVICE=C:\ANYPATH\ANYDRIVE.SYS

You must insure that there are no DMA, I/O address or interrupt
conflicts with other adaptors in the system.


If you want to use a monolithic style driver on an adaptor that is
supported by LADDR you must ensure that the LADDR driver (LADDR
drivers are noted by the .BID suffix) is not present in the root
directory of your boot device. In general this prohibits you from
having multiple adaptors in the same system with some controlled
by monolithic style drivers and some controlled by LADDR drivers.
Some vendors may make special provisions in the LADDR and Monolithic
drivers to allow this to take place. This is done by having the
two different driver architectures recognize the adaptors as specific
address and/or interrupts. You should contact your adaptor vendor
for more details.



Part 4: IBM Systems
===========================================================================

4.1 Family 3 Machines
---------------------

IBM has released a new series of PS/2 machines with AT style buses, two
examples of this are the PS/2 Model 40SX and 35SX. The new machines
use a new BIOS model called Family 3 (The original ATs were Family 1
and the PS/2 with MicroChannel are Family 2s).

Microsoft OS/2 version 1.3 is not compatible with family 3 machines,
you will need to use IBM OS/2.
			     

4.2 Core Drives
---------------
This version of OS/2 1.3 is compatible with drives from Core, however
you must have revision level 2.10 or greater Core firmware
on you controller card. Using anything prior to this level can
cause data corruption or system internal errors.

Before using this version on a Core equipped system you should 
contact Core and explain that you want to run OS/2 version 1.3
with LADDR drivers and you want the correct set of ROMs.


4.3 ABIOS Patches
-----------------
If you wish to use this version of OS/2 on IBM PS/2(TM) systems
you should contact your IBM dealer for the set of ABIOS patches.
These consist of a driver (ABIOS.SYS) and patch files that are 
loaded at boot time. These files correct bugs and deficiencies that
are present in the ABIOS.

Note if you are using a Model 90 or 95 the ABIOS patches are
not required.



4.4 IBM PS/2 Mod 70
-------------------

PS/2 Model 70 w/ESDI disks

During testing we have found that some PS/2 model 70 have ESDI disk
problems that cause spurious NMI's (Non Maskable Interrupts). The usual
symptom under OS/2 is a hard error pop up (see example below) displaying 
a Trap 2 - NMI interrupt.

(Please note that the values in the register dump below will be different
on your system. THIS IS JUST AN EXAMPLE).

Trap 2 - NMI Interrupt                                                          
AX=004B  BX=1230  CX=0014  DX=197F  SP=8F58  BP=8F96  SI=0008  DI=96BC          
IP=8AE7  CS=0127  DS=01C7  ES=197F  SS=01C7  -- NV UP EI PL NZ NA PE NC         
GDTR=110020 1B5F  IDTR=1133AA 03FF  TR=0010  LDTR=0028 IOPL=2 MSW=PM EM TS      


The reason for a trap 2 on any system is usually bad memory, if you
have this checked out and bad memory is not the cause it is possible that 
you have a bad disk. Certain PS/2 mod 70's with ESDI disks will
randomly generate an NMI and cause this problem. If you experience this
problem you should have your controller replaced.


Certain models of the IBM PS/2 Model 70-A21 have problems with bus master
devices.  There is an IBM engineering change to fix the problem. Please
contact your IBM dealer for details.




5. MSNULL Driver
===========================================================================

A new printer driver (MSNULL) is included in this release of 
OS/2, it is located on the Core Fonts Disk. The driver is used for
cases where you need to print to > LPT3 and or > COM3. This driver is
similar to the IBMNULL driver except for the following:

1)  It will print to any port.  The IBMNULL is limited to
    LPT1-3 and COM1-3.

2)  It will NOT set serial port baud rate and other settings.  It
    simply uses the port as it is.  This allows MODE and third
    party utilities to set the port without regard for the settings
    in OS2.INI.

    The IBMNULL sets the serial port to OS2.INI values before every
    job.


Another reason for using this driver is to have a greater choice
of baud rates. The OS\2 Control Panel allows the user to choose only a
small sub-range of the possible serial port parameters available on some
manufactures serial boards. Third party utilities can be used to set the
serial ports, much like MODE. However, IBMNULL will over write these 
setting before the print job is sent. MSNULL will NOT attempt to reset
the serial port.



6. LADDR Adaptor Card Support List
===========================================================================

Device drivers for the following manufacturers Adaptor cards have been
tested and have been found to be compatible with this release of Microsoft
OS/2. Not all of these drivers are included in the install set, for the
list of included drivers please see section 3.1 In all cases these adaptors
may functions as the OS/2 boot device. Please see instructions that accompany
the adaptor cards for hardware setup details.



NCR:

  NCR_C700.BID      Support NCR Microchannel PCs
  NCR_C7XX.BID                                                
  NCR_C90.BID                                                 
                                                                

Adaptec:

  AHA152X.BID       AHA-1520/1522 (ISA)                       
                    AHA-1510 (ISA)                            
                    AIC-6260 (SCSI on System board)           
                                                       
  AHA154X.BID       AHA-1540/1542 (ISA)                       
                    AHA-1740/1744 (EISA) in Standard Mode     
                                                               
  AHA164x.bid       AHA-1640 (MCA)                            
                                                       
  AHA174x.BID       AHA1740 (EISA) in enhanced mode           
                                                                

Western Digital:

  WD7000AX.BID      WD7000                                    
  WD7000EX.BID      WD7000EX110, WD7000EX210                  


Generic	ESDI, MFM, RLL, IDE support
                                                                
  ESDI-506.BID      Western Digital 1003, IDE and compatibles  


MicroChannel support:

  ABIOS.BID         For IBM and MCA clones (except NCR)
                                                                

Future Domain:

  FD8XX.BID         Future Domain 8 Bit cards                                     
  FD16-700.BID      Future Domain 16 bit cards                                     


Mylex

  DCE376.BID         Mylex DCE376

Note: that the Mylex controller is only supported as a primary controller
(this means that it must be the controller that takes control and
boots the system), it is not supported as a secondary. Contact Mylex
directly for the LADDR driver.


Compaq SystemPro(R) 

  CPQARRAY.BID      Compaq SystemPro Array controller in native mode 
		    Compaq Intelligent Array Expansion system 2600


Distributed Processing Technology (DPT):

DPT201X.BID         PM2011/90 & 95 
                    PM2012A/90 & 95 
                    PM2012B/90 

  These are the non-SCSI models (ESDI, MFM or RLL)

                    PM3011/70/75/60/65/50/55 

                    PM2001/90 & 95 
		    (This adaptor runs only in ESDI emulation mode,
                     not in conjunction with the DPT BID)


Storage Dimensions: SSTOR2.BID

  SDC-1611       (16-bit, MCA)
  SDC-1611B      (16-bit, MCA)
  SDC-3211B      (32-bit, MCA)
  SDC-1602       (16-bit, ISA)
  SDC-1602B      (16-bit, ISA)
  SDC-3222B      (32-bit, EISA)



ADIC:

  ADIC0001.BID   ADIC ISA-1 (AT) 
		 ADIC EISA-1 (EISA) 
		 ADIC MCA-1 (Microchannel)

 
7. DOS Box Memory and LADDR drivers
===========================================================================
The LADDR driver provided in this release of OS/2 utilize memory
in the lower 1Mb address space. This is also the memory space
used for the DOS compatibility Box. If you are short of dos box
memory you can maximize it be REMing any unused DEVICE= statements
in your config.sys file that load LADDR drivers. Typically these
would be for CD-Rom or Tape Support. Also minimizing the number
of individual adaptors installed in the system (and deleting
the corresponding ".BID" file from C:\). (These files
are system hidden so you will need to use the file manager to change
the attribute so you can see them).



8. CD-Rom Support
===========================================================================

This release of OS/2 included support for internal or external CD-Rom
drives attached to SCSI adaptors (see list of supported SCSI adaptors).

Two features of CD-Rom are currently supported: CD data and CD Audio.
CD data is accessed analogous to an additional disk drive, ie. the 
CD-Rom (with a data CD present) will appear as the next logical drive
letter. Programs and data are accessed like any other drive. However
because CD-Roms are read-only you cannot copy any file to the device.

The Audio feature will allow the user to play music through the CD player
using the Audio outputs on the CD-Rom device. The CDAUDIO application
presents the user with a simulation of a consumer audio CD player. Selection
of tracks, playing, pausing etc. from a Presentation Manager(r) screen 
group is supported.


8.1 CD Data
-----------

Installation requirements:

OS/2 will install CD-Rom support automatically if a CD-Rom is
present at install time. If you add CD-Rom hardware at a later
date you can either re-install OS/2 or follow the directions
below.



The files involved for CD-ROM support are:
(These files can be found in the \os2\support directory or the OS/2 support
 floppy)

ucdfs.dll	- put in any LIBPATH directory
cdfs.ifs	- any directory
cdrom.tsd	- any directory
stdcdrom.vsd	- any directory

Config.sys changes:
- add directory which contains ucdfs.dll to LIBPATH or copy ucdfs.dll
  to your \os2\dll directory.

- add directory which contains cdaudio.exe to PATH

- add the lines: (refer to Note 2 for parameters information)
  (the order here is important, please follow the same ordering
   as below).


        DEVICE=C:<whatever path>\STDCDROM.VSD 
        DEVICE=C:<whatever path>\CDROM.TSD 
        IFS=C:<whatever path>\CDFS.IFS 

Note: For Denon DRD253 users you would also need to add the following
line to your CONFIG.SYS:

DEVICE=C:<whatever path>\DENON.VSD 

==============================================



Notes:

    1. ucdfs.dll provides the SYS, FORMAT, CHKDSK, and RECOVER functions 
       for CD-ROM devices. Since CD-ROM's are normally read only devices,
       these functions do little more than generate informational messages.

    2. Put the following line in CONFIG.SYS

           IFS=<full path>\CDROM.IFS <parameters>

       where <full path> points to the directory which contains the
             "CDROM.IFS" file

       and <parameters> are defined as follows:


           /k      Enables Kanji support. Causes the FSD to search for
           /K      a secondary volume descriptor instead of the primary
                   volume descriptor. If a secondary is not found, then 
                   the primary volume descriptor is used.

           /c:<#>  Sets the size of the file system's cache. "#" is the
           /C:<#>  number of 64k memory blocks to use. Valid values are
                   1 through 65535. The default is 2.

                   Note that the CD-ROM file system uses swappable
                   memory so that the cache can be larger than real
                   memory. Swapping may incur a performance overhead
                   and require hard disk space.

           /m:<#>  Sets the maximum number of sectors to read in a single
           /M:<#>  operation. The minimum is 1. The maximum is the smaller
                   of 25% of the caches capacity and 31. The default is 8.

           /quiet  Suppresses the sign on messages.
                  
           Note that the /c parameter must appear before the /m parameter
           or the /m parameter will be ignored and the default value used.

       Example:	 ifs=c:\ifs\cdfs.ifs /k /c:4 /m:20

	   This example causes the CD-ROM file system to be loaded from
           the \ifs directory of the c: drive. The cache size will be 256k
           (4 64k blocks) and data will be transferred in up to 20 sector
           bursts.



8.2 CD Audio
------------

To enable the Audio application to support you CD-Rom driver you 
will need to place the cdaudio.exe file in a directory in your path
statement or you can select to add it to one of your PM (r) screen
groups.


Installation requirements:

The files involved for CD-ROM support are:
(These files can be found in the \os2\support directory or the OS/2 support
 floppy)

        DEVICE=C:<whatever path>\STDCDROM.VSD 
        DEVICE=C:<whatever path>\CDROM.TSD 




Limitations:

CD Audio support is only available on CD-Rom drives that support the
SCSI II command set. At this time the following CD drives are known
to support CD Audio and have been tested with this release of OS/2:


Drive Model             SCSI1/2    Internal id                 
===============================================================
Toshiba txm-3301a1      SCSI 2     Toshiba cd-rom drive xm:3433
Sony cdu-541            SCSI 2     Sony cd-rom cdu-541 2.6a    



In addition a special VSD is included to support Audio on Denon DRD-253.

To enable this operations you must install in using a DEVICE= line in your config.sys.
Add the following lines to your config.sys in this order (THE ORDER
OF THESE STATEMENTS ARE CRITICAL TO PROPER OPERATION OF THE CD DEVICE)

DEVICE=<path>DENON.VSD
DEVICE=<path>STDCDROM.TSD

Where path = the directory path to the location of the .TSD and .VSD files.



9. Secondary ESDI controller support
===========================================================================
This version of OS/2 allows an ESDI controller to be used as a secondary
(with up to 2 drives per controller). This is however restricted to the
following models of ESDI controllers:

Western Digital 1009V-SE1/SE2
Compaq 001283 


In addition The controller must be jumpered for use as a secondary 
controller, also the interrupt must be configured to not conflict 
with any other adaptors in the system.

ESDI controllers can be used a secondaries to other ESDIs, RLL, MFM or
IDE controllers, but not SCSI.




10. Hardware Compatibility List
===========================================================================

10.1 Computers
--------------
    ACER 1100/33                       
    ACER 1120sx                        
    ACER 1120sx                        
    ACER 1125E                         
    ACER 1170                          
    ACER Power 486sx                   
    ACERPower 500 486sx/20             
    ADD-X AS325                        
    Adler Royal P35                    
    Adler Royal P45                    
    ALR BusinessStation 386/33         
    ALR BusinessStation 486/25         
    ALR BusinessStation 486/33         
    ALR BusinessVEISA 386/33           
    ALR BusinessVEISA 486/33           
    ALR BusinessVEISA 486ASX           
    ALR MPS 386/33                     
    ALR MPS 486/33                     
    ALR PowerCache 4 25                
    ALR PowerCache 4 33                
    ALR PowerCache 4e                  

    ALR PowerFlex 20 CSX               
    ALR PowerPro 128/150 SMP Series    
    ALR PowerPro DMP (256150)          
    ALR PowerPro VM/64                 
    ALR PowerVEISA 386/33              

    ALR PowerVEISA 486/33              
    ALR SX PowerFlex                   
    AST Premium 386/25                 
    AST Premium 386/33TE               
    AST Premium 486/33E                
    AST Premium 486/33TE               
    AST Premium II 486/33              
    AT&T 6386/25 WGS                   
    AT&T 6386E WGS                     
    AT&T 6386E/33 model S WGS          
    AT&T 6386E/33 WGS                  
    AT&T 6386SX WGS                    
    AT&T 6386SX/EL                     
    AT&T 6386SX/EL 20                  
    AT&T StarServer E                  
    AT&T StarServer S                  
    AT&T StarStation                   
    Bull Micral 200                    
    Bull Micral 400                    
    Bull Micral 45                     
    Bull Micral 500                    
    Bull Micral 600                    
    Bull Micral 75                     
    Compaq Deskpro 286n                
    Compaq Deskpro 386/16              
    Compaq Deskpro 386/20              
    Compaq Deskpro 386/20e             
    Compaq Deskpro 386/25              
    Compaq Deskpro 386/25e             
    Compaq Deskpro 386/25M             
    Compaq Deskpro 386/33              
    Compaq Deskpro 386/33L             
    Compaq Deskpro 386n                
    Compaq Deskpro 386s/20             
    Compaq Deskpro 486/33L             
    Compaq Deskpro 486/33L             
    Compaq Deskpro 486/33M             
    Compaq Deskpro 486/50L             
    Compaq Deskpro 486s/16M            
    Compaq Deskpro 486s/25M            
    Compaq LTE 386s/20                 
    Compaq SLT 386s/20                 
    Compaq SystemPro 386/33            
    Compaq SystemPro 486/33            
    CompuAdd Model 320SC               
    CompuAdd Model 333LP               
    CompuAdd Model 333T                
    CompuAdd Model 433E                
    DECpc 320 SX Notebook              
    DECpc 333 Portable                 
    DECstation 320sx                   
    DECstation 333c                    
    DECstation 433T                    
    Dell Drive Array                   
    Dell Powerline System 420DE        
    Dell Powerline System 420SE        
    Dell Powerline System 425DE        
    Dell Powerline System 425SE        
    Dell Powerline System 433DE        
    Dell Powerline System 433SE        
    Dell Powerline System 450DE        
    Dell Powerline System 450SE        
    Dell System 325P                   
    Dell System 333P                   
    Dell System 433P                   
    Dell System 433TE                  
    Dell System 486D20                 
    Dell System 486D25                 
    Dell System 486D33                 
    Everex Step 386/25                 

    Everex Step 386/33                 
    Everex Step 386/33                 
    Everex Step 386/33 Tower           
    Everex Step 486/25                 
    Everex Step 486/33                 
    Everex Step 486/33 12-Slot EISA    
    Everex Step 486/33 8-Slot EISA     
    Everex Step 486/33 Cube            
    Everex Step 486/33 Tower           

    Everex Step Cube 486/33e           
    GRiD 325sc                         
    GRiD 386is-16                      
    GRiD 386is-20                      
    GRiD 386is-25                      
    GRiD 386is-33                      
    GRiD 386isx-20                     
    GRiD 386mc                         
    GRiD 386sx-MFP                     
    GRiD 386sx-MFP20                   
    GRiD 486ei-25/SVR                  

    GRiD 486ei-33                      
    GRiD APT/425se                     
    GRiD MFP/420s                      
    Hermes H 220                       
    Hermes H 220 S                     
    Hermes H 260 S                     
    Hermes H 320                       
    Hermes H 335                       
    Hermes H 360                       
    Hermes H 400                       
    Hermes H 400 E                     
    Hermes H 410                       
    Hermes H WALKSTATION 286 V         

    Hermes H WALKSTATION 386 33        
    Hermes H WALKSTATION 386 SX        

    Hermes H WALKSTATION 386 SX        
    Hermes H WALKSTATION SX 20         
    HP Vectra 286/12                   
    HP Vectra 386/16N                  
    HP Vectra 386/20N                  
    HP Vectra 386/25                   
    HP Vectra 386/25                   
    HP Vectra 486/25T                  
    HP Vectra 486/33T                  
    HP Vectra 486S/20                  
    HP Vectra QS/16S                   
    HP Vectra QS/20                    
    HP Vectra QS/20                    
    HP Vectra RS/20                    
    HP Vectra RS/25C                   
    IBM PC AT                             
    IBM PS/2 Model 50                  
    IBM PS/2 Model 60                  
    IBM PS/2 Model 70 386              
    IBM PS/2 Model 80 386              
    IBM PS/2 Model 90                  
    IBM PS/2 Model 95 XP               
    IBM PS/2 Model P70                 
    IBM PS/2 Model P75                 
    ICL Alfaskop DS 348                
    ICL Alfaskop DS 458 Eisa           
    ICL Alfaskop DT 226                

    ICL Alfaskop DT 336                
    ICL Alfaskop DT 336sx              
    ICL Alfaskop DT 346                
    ICL Alfaskop DT 346                
    ICL Alfaskop DT 436sxe             
    MiTAC 4080f                        
    MiTAC 4280g                        
    NCR 3000 Model 3304                
    NCR 3000 Model 3320                
    NCR 3000 Model 3340                
    NCR 3000 Model 3340                

    NCR 3000 Model 3341                
    NCR 3000 Model 3345                
    NCR 3000 Model 3345                
    NCR 3000 Model 3420                
    NCR 3000 Model 3445                
    NCR 3000 Model 3447

    NCR EL PC 386                      
    NCR PC925                          
    NEC Powermate 386/25s              
    NEC Powermate 486/25E              
    Northgate Elegance 333             
    Northgate Elegance 425i            
    Northgate Elegance 433e            
    Northgate SlimLine 320SX           
    Olivetti 1 Laptop D33              
    Olivetti 1 Laptop S20              
    Olivetti 1 Notebook A12            
    Olivetti 1 Notebook S20            
    Olivetti 1 Notebook V16            
    Olivetti LSX5005                   
    Olivetti LSX5010                   
    Olivetti LSX5020                   
    Olivetti LSX5020 with PEM          
    Olivetti M250e                     
    Olivetti M300                      
    Olivetti M300-01                   

    Olivetti M300-05                   
    Olivetti M300-10                   
    Olivetti M300-25                   
    Olivetti M380-40                   
    Olivetti M380-XP4                  
    Olivetti M380-XP7                  
    Olivetti M380-XP9                  
    Olivetti M400-10                   
    Olivetti M486                      
    Olivetti M486 ESDI                 
    Olivetti P500                      
    Olivetti P750                      
    Olivetti P800                      
    Olivetti PC PRO 290 SP             
    Olivetti PC PRO 33                 
    Olivetti PC PRO 486/33             
    Olivetti PC PRO 486SX              
    Olivetti PC PRO 486SX mt           

    Olivetti PC PRO SX 16              
    Olivetti PC PRO SX 20              
    Olivetti PCS 286                   
    Olivetti PCS 286 S                 
    Olivetti PCS 386 SX                
    Packard-Bell Model Force 486
    Packard-Bell Model PB 300

    Packard-Bell Model PB 486-25
    Packard-Bell Model PB 486/33
    RDI 386/33C                        
    Siemens-Nixdorf PWS M              
    Tandy 2500SX                       
    Tandy 2500SX/20                    
    Tandy 4016DX                       
    Tandy 4016SX                       
    Tandy 4020LX                       
    Tandy 4020SX                       

    Tandy 4025LX                       
    Tandy 4033LX                       
    Tandy 4820SX/T                     
    Tandy 4833LX/T                     
    Tandy 5000MC                       
    Tatung TCS8900S                    
    Triumph-Adler P35                  
    Triumph-Adler P35 S                

    Triumph-Adler P45                  
    Triumph-Adler TA DARIO 286         
    Triumph-Adler TA DARIO 286 S       
    Triumph-Adler TA DARIO 386 SX      
    Triumph-Adler TA DARIO 486         
    Triumph-Adler TA DARIO 486 SX      
    Triumph-Adler TA DARIO 486 SXE     
    Triumph-Adler TA DARIO DX/33       

    Triumph-Adler TA DARIO S/20        
    Triumph-Adler TA DARIO SX/20       
    Triumph-Adler TA WALKSTATION 286 V 
    Triumph-Adler TA WALKSTATION 386 33
    Triumph-Adler TA WALKSTATION 386 SX
    Triumph-Adler TA WALKSTATION 386 SX

    Triumph-Adler TA WALKSTATION SX 20 
    Unisys PW2 - 800 386/20            
    Unisys PW2 - 800 386/25            
    Unisys PW2 - 800 386/33            

    Unisys PW2 - 800 486/25            
    Unisys PW2 Advantage 3163          
    Unisys PW2 Advantage 3206          
    Unisys PW2 Advantage 3256          
    Unisys PW2 Advantage 3336          
    Zenith MastersPort 386SL           
    Zenith MastersPort 386SX           
    Zenith SupersPort 486DX            
    Zenith SupersPort 486SX            
    Zenith Z-248/12                    
    Zenith Z-286 LP plus               
    Zenith Z-386/16                    
    Zenith Z-386/20                    
    Zenith Z-386/25                    
    Zenith Z-386/25M                   
    Zenith Z-386/SX                    

    Zenith Z-386SX/20                  

    Zenith Z-486/25e                   
    Zenith Z-486/25E                   

    Zenith Z-486/33E                   

    Zenith Z-486/33ET                  

    Zenith Z-486/33ET (European)       

    Zenith Z-486/ET                    
    Zenith Z-486/SX 20                 
    Zenith Z-LP plus                   
    Zenith Z-LS model 40               

    Zenith Z386/33                     
    Zenith Z386/33                     
    Zenith Z386/33e                    
    Zenith Z486/33E                    





11. INSTALLING TAPE DRIVES AND SOFTWARE
=============================================================================

     General
     -------
     In order to use a tape device on your system you must have an adapter
     with its corresponding BID loaded, and a VSD and TSD. Microsoft 
     supplies the TSD in the form of the binary file TAPE.TSD. This can
     be found in the "C:\OS2\SUPPORT" directory.  Microsoft also provides
     one VSD named WANGTEK.VSD.  This can be found on the support diskette
     in the '\TAPE' directory.  This VSD supports the WANGTEK 5525ES and 
     HP 525 Megabyte (P/N D2034A) tape drives. These drivers must be loaded 
     via DEVICE= lines in your CONFIG.SYS file and the TSD must always be 
     loaded AFTER any VSDs for the device in question. 

     Example: Suppose you have either the WANGTEK 5525ES or HP 525 drive. 
     You need to copy the file WANGTEK.VSD from "\TAPE" on the support 
     diskette to 'C:\OS2\SUPPORT'. Then make certain you have the 
     following two lines in your CONFIG.SYS file:

            DEVICE=C:\OS2\SUPPORT\WANGTEK.VSD
            DEVICE=C:\OS2\SUPPORT\TAPE.TSD
     
     Note, if you are using a LADDR 'aware' release of Sytos Plus, you do 
     not need to manually add these lines since the Sytos Plus install 
     program will take care of adding these lines for you (see below).

     Note also that if you're using Sytos Plus 1.32 , Sytos Plus comes
     with a VSD that supports the WANGTEK 5525ES and this driver should 
     be used instead of the driver (WANGTEK.VSD) shipped with OS/2 1.3.

     Release 1.32 of Sytos Plus supports Microsoft's OS/2 1.3 Layered 
     Device Driver Architecture (LADDR) for SCSI adapters. If you have 
     Sytos Plus 1.32 see the readme file that comes with it.

     If using the WANGTEK.VSD provided with OS/2 1.31 you can either add the
     LADDR drivers while installing Sytos Plus or after installing Sytos
     Plus.

     To install the LADDR driver WHILE installing Sytos Plus:
     --------------------------------------------------------
     The Sytos Plus Installation prompts you to choose a backup device
     from a list of devices. If your required tape device is not in
     this list choose the option 'Driver Disk'. Insert the OS/2 SUPPORT
     disk in the floppy drive and then select [OK]. Now choose the 
     appropriate device from the list displayed.


     To ADD the LADDR driver AFTER Sytos Plus is installed:
     ------------------------------------------------------
     Choose the option 'Driver Disk' from the 'Utilities: Backup
     Device Setup' menu. Select the device driver from the list displayed
     then select [OK].

     Ensure the WANGTEK.VSD and TAPE.TSD have been configured in the
     Config.sys.

     Note, if your Sytos Plus version comes with a VSD that supports the 
     'HP 525Mb' tape drive then this driver should be used instead of the 
     driver WANGTEK.VSD that is shipped with OS/2 1.30.1.



        
