286 Express Card  (250-1035)  Configuration            Faxback Doc. # 3170

Copying Files from Distribution Diskette

Before starting the installation, copy all of the files from the diskette
that came with the 286 Express Card to your "default" hard disk directory,
or to your system diskette:

   EXPRESS.SYS ..... A device driver for the 286 Express Card that turns
                     caching on and off and provides a way for the system
                     to erase the 8K cache memory.

       PCT.EXE ..... A program that allows you to use keyboard commands or
                     batch files to switch between your system's 8088
                     processor and the 286 Express Card's 80286 processor.
                     Also included are routines that let you turn memory
                     caching on or off and test hardware status.

    README.BAT ..... This file uses the remaining files on the
                     distribution diskette (DEMO.EXE, PCTINFO.BAT, etc.)
                     to demonstrate the power of the 286 Express Card.

Note:  Source file CACHE.ASM is also provided on the distribution
       diskette.  We have included this program to provide you with an
       example of how to code your own caching on/off routine.

Creating or Modifying the CONFIG.SYS File

For the 286 Express Card to operate properly, the operating system must be
configured to load the EXPRESS.SYS device driver at system start-up.  You
do this using the CONFIG.SYS file.  We suggest that you configure your
system before you install the 286 Express Card.  That way, your system will
operate properly when you first turn it on following installation.

If you do not already have a CONFIG.SYS file you must create one.  You can
either use a word processor or the EDLIN line editor that came with your
operating system.  If you already have a CONFIG.SYS file, add the line
shown below as the first line in the file.

   CONFIG.SYS File
     Device = EXPRESS.SYS [OFF] [88] [CPU] [CACHE] [ALT]
     other device drivers

The parameters enclosed in brackets may or may not be required depending
upon your system configuration.  When entering the parameters, do not
include the brackets.

      Parameter       Purpose
─────────────────────────────────────────────────────────────────────────
            OFF       If this parameter is listed, the system boots, then
                      turns caching off.  If you omit this parameter, the
                      286 Express Card's memory caching feature is turned
                      on immediately following boot-up.  Normally, you
                      will want to omit this parameter and leave caching
                      enabled.

             88       If this parameter is listed, the system remains in
                      the slower 8088 mode following boot-up.  The only
                      time you should want to remain in the 8088 mode is
                      when you want to run a speed-sensitive program
                      immediately following boot-up.

                      If you omit this parameter, your system boots in the
                      8088 mode, but is then automatically switched to the
                      faster 80286 mode by the system driver.  Normally,
                      you will want to omit this parameter and switch to
                      the faster 80286  processor following boot-up.

            CPU       Following boot-up, the "Hot Keys" (ALT< or ALT>)
                      used to switch between processors are enabled when
                      this parameter is listed.  If this parameter is
                      omitted, the processor switching "Hot Keys" are
                      disabled and have no effect.

          CACHE       Following boot-up, the "Hot Keys" (ALT-Right SHIFT
                      key) used to enable or disable memory caching is
                      enabled when this parameter is listed.  If this
                      parameter is omitted, the cache enable/disable "Hot
                      Key" is disabled and has no effect.

            ALT       The standard I/O address (0100h) the software uses
                      to access the 286 Express Card is the correct one
                      for most applications.  If you have an optional
                      board installed in your computer that already uses
                      the 0100h address, you must list the ALT parameter
                      in the command line.  This changes the address the
                      software uses to 03E0h.

                      If the ALT parameter is listed, you must also change
                      the 286 Express Card's address by setting option
                      switch 9 ON.

If no parameters are listed, the default status is:

   *  Caching enabled
   *  80286 enabled
   *  Processor switching "Hot Keys" disabled
   *  Cache enable/disable "Hot Keys" disabled
   *  Standard I/O address (0100h) used by 286 Express Card

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