Last modified 3/8/95


ENHANCED IDE SOFTWARE
=====================

Windows 3.11 and Windows for Workgroups 3.11 do not support use of 32-bit Disk
Access mode on Enhanced IDE hard disk drives (drives larger than 528MB or with
more than 1024 cylinders) without use of a special driver. To provide full
functionality of our systems with larger capacities and Windows 3.11, Toshiba
has developed a Windows driver to support 32-bit Disk Access for use with
these models.  Download EIDE32.EXE from the `Toshiba Software' library (LIB 2)
if you have one of these models and want to use the 32-bit Disk Access mode.
EIDE32.EXE contains the enhanced IDE software driver and an automated
installation program (SETUP.BAT).  The driver allows 32-bit disk access for
hard drives larger than 528MB in Windows 3.1x and Windows for Workgroups 3.1x.

                                NOTE:

    To gain maximum disk performance you should enable 32-bit disk and 
    file access after installing the FAST Disk Driver.  Please see the
    section "Enabling 32-bit Disk and File Access" below for more
    instructions.  


SPECIAL NOTE FOR T4850CT USERS
==============================

In addition to the installation steps covered below, T4850CT users must also
add a line line to the [386Enh] section of the SYSTEM.INI which reads:

    DEVICE=VCACHE.386

VCACHE.386 is already in the WINDOWS/SYSTEM directory of the pre-installed
T4850.

If this line isn't added to SYSTEM.INI then attempts to enter the virtual
memory section results in a error:

"32-bit File Access was unable to run. This may be because you started the
network before starting Windows, because Windows could not find the IFSHLP.SYS
driver, or your hard disk(s) may be incompatible with 32-bit File Access."


SPECIAL NOTE FOR QEMM USERS
===========================

The following QEMM switches have been reported to be required in order to use
QEMM's Stealth mode with Toshiba's EIDE 32-bit Disk Access driver.

  ST:M XBDA:N X=FE00-FEFF

The Quarterdeck also has a device driver available that is recommended for use
with any EIDE Windows drivers.  The filename in the QUARTERDECK Forum
libraries is 32BDA.ZIP.  This file includes a thorough explanation of the
issues relating to use of QEMM with 32-bit Disk Access drivers for use with
EIDE drives.


INSTALLATION OF TOSHIBA'S EIDE FAST DISK DRIVER
===============================================

Using SETUP to Install the Fast Disk Driver
-------------------------------------------

1.  Copy the files extracted from EIDE32.EXE to the root directory of
    a formatted diskette in the A: drive.

2.  At a DOS prompt, run the installation program:

    a:\setup

and follow the instructions given there.  SETUP should automatically 
install the driver. If for some reason there is a problem, you can
perform the installation manually:

                                NOTE:

    The installation program (SYSINI.EXE) _requires_ that the software
    be installed from a diskette in the A: drive.



Manually Installing the Fast Disk Driver
----------------------------------------

1. At a DOS prompt, copy the driver to your windows directory. 
   For example:

   copy a:\toshctrl.386 c:\windows\system

2. Edit your SYSTEM.INI file to enable the new driver.  For example:

    a.  At the DOS prompt, type CD \WINDOWS and press ENTER.

    b.  Type EDIT SYSTEM.INI and press ENTER.

    c.  In the [386Enh] section add the following lines:

            32bitDiskAccess=OFF
            device=*int13
            device=toshctrl.386 

    d.  To save the file first press ALT+F, then press S. 

    e.  To exit the editor first press ALT+F, then press X. 


ENABLING 32-BIT DISK AND FILE ACCESS
====================================

                                NOTE:

    In order to enable 32-bit disk access within Windows or Windows for
    Workgroups, you must first install the FAST Disk Driver by using
    SETUP or by manually performing the steps in section "Manually 
    Installing the FAST Disk Driver", above. 
    If you are using Windows for Workgroups you can enable 32-bit file
    access as well as 32-bit disk access.

To enable 32-bit disk access and 32-bit file access:

1.  Start (or restart) Windows or Windows for Workgroups.

2.  2a. Double click the Control Panel 
    2b. Double click the (386) Enhanced icon.(Enhanced dialog box opens.)  
    2c. Click on Virtual Memory button (Virtual Memory dialog opens).  
    2d. Click on Change button (more options appear).  
    2e. Click on "Use 32-bit disk access" (check mark appears).  
    2f. Click on "Use 32-bit file access" (Windows for Workgroups only; 
        check mark appears). 
    2g. Press ALT+A and type 2048 in Cache Size box (Windows for Workgroups 
        only; sets Cache Size up to 2,048KB). 
    2h. Respond "Yes"/"OK" to all prompts, and select "Restart Windows" 
        when prompted.

3.  The changes should take effect when Windows restarts.  This may be 
    verified by opening the Virtual Memory dialog again as described above.