IBM ThinkPad 560X                                       Apr  13, 1998
System Program Service Diskette Version 1.01
============================================


What This Diskette Does
-----------------------

This System Program Service Diskette updates the system BIOS
program stored in the ThinkPad system to fix problems, add new functions,
or expand functions as noted below. The supported models are as follows.

   - ThinkPad 560X

To determine if you should update the system program, please
refer to the "Summary of Change" section.

To update the system program, please refer to the "Updating System
Program" section.



Released Version
----------------

Version 1.00     A fix for problems as noted below.
Version 1.01     A fix for problems as noted below.


Summary of Change
-----------------

 Key: <n.nn>  Diskette Version (for example, 1.00 means Version 1.00)
       (New)   New Function or Enhancement
       (Fix)   Correction to existing function


<1.00>

 - (Fix) If attached DIMM does not supports self-refresh, do nothing
         related to refresh control.

<1.01>

 - (Fix)  Keystroke entry immediately after entering the power on password
             can result in failure of proper recognition of subsequent keystrokes
              That is, a keystroke immediately after the entry of a password (before 
              the  operating system is fully loaded), can cause problems with any 
              subsequent keyboard entry.  If you experience this problem, 
              update the BIOS with this SPSD.
 - (Fix) If any flicker or jitter is noticed in various images on HPA LCD
              models, update the BIOS with this SPSD to update  the video
             bios to improve the appearance of the images.


Updating System Program
-----------------------

Notes: - You need an AC adapter and a charged battery pack to update
         the system program.

       - If your computer is attached to a port replicator,
         turn off the computer and detach it before proceeding.

1.  Print these instructions or display on another computer.
2.  Firmly connect the AC adapter to the computer.
3.  Insert the System Program Service Diskette into the diskette drive
    and turn on the computer.
4.  Select "Read this first..." from the menu and carefully read the
    information that appears.
5.  Press the Esc key to return to the menu.
6.  Select "Update system program" and follow the instruction on
    the screen.

    Warning: Do not turn off or suspend the computer until the update
             has been completed. IF YOU TURN OFF OR SUSPEND THE
             COMPUTER WHILE THE UPDATE IS STILL IN PROGRESS, THE SYSTEM
             BOARD MAY HAVE TO BE REPLACED.

After the update has been completed, run the diagnostics to make sure
that the computer runs with no errors:

7.  Make sure the System Program Service Diskette is removed from
    the diskette drive, then turn off the computer.
8.  Press and hold the F1 key, then turn on the computer. Hold the F1 key
    until the Easy-Setup menu appears.
9.  If a password prompt appears, type the correct password.
10. Select Test, then select Start to run all the basic tests.
    Various test patterns will appear on the screen.
    An OK will appear for each device that passes the test.
11. Verify that OK appears for all of the devices tested.
12. Press the Esc key to exit Test and turn off the computer.


System Program Information
--------------------------

Each version of the System Program Service Diskette contains the following
system program (BIOS). The BIOS P/N and the date can be viewed by invoking
Easy-Setup menu.


  Diskette  BIOS    BIOS
  Version   P/N     Date
  --------  ------- --------
  1.00      97H4580 12-02-97
  1.01      97H4071 04-06-98

Service Information
-------------------

The System Program Service diskette installs System Program as follows.


                                                Reserved    Usable
  ThinkPad Model          BIOS P/N   Date       BIOS Area*  BIOS ROM Area*
  ------------------------------------------------------------------------
  560X                    97H4071    04/06/98   C000-C7FF   E000-EFFF
                                                F000-FFFF


  * NOTE: - Memory Range C000-C7FF is reserved for Video BIOS.
          - Memory Range E000-EFFF can be used as UMB (Upper Memory Block)
            by a memory manager such as EMM386.EXE.
          - Memory Range F000-FFFF is reserved for BIOS.


The BIOS P/N and the date can be viewed by invoking Easy-Setup menu.


Trademarks
----------

  * IBM and ThinkPad are trademarks of IBM Corporation.