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                   Release Notes for XCPBIOS

                   SYSTEM BIOS FOR XC PENTIUM
                          Version 125
                   Changes since Version 124

                (C) Copyright Itronix Corp. 1999

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Modified BIOS to set display type in the comos from the configuration
string before checking the display select lines from the HW.  This is
only a SW workaround to prevent recalling failure units.  Since
BIOS v.125 relies on the display option in configuration string to
set lcd type in the cmos, This may causes problem when upgrading from
one type of lcd to the other type. (xcpbios125 0083p1067)

Changed "Cache" menu options.  The "Write Back" option is removed; and 
"L1 Enabled" option is added.  The added option seems fix the random 
lockup happened in LVWU's 200 MHz units  (xcpbios125 0083p1078).

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           Known Problems in this version of XCPBIOS

                (C) Copyright Itronix Corp. 1999

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

Known Deficiencies:

1. Swapping cards is not supported when booting from a PC card
   with DOS 7.0.

2. SRAM and ATA PC Cards should not be swapped during suspend if the
   card is the boot device.

3. Resume does not work if the boot device is an ATA PC Card.

4. Unpredictable system behavior may occur if power management
   is disabled in System Configuration Utility (SCU).

5. If computer is booted with a non-bootable PC card in the slot,
   it must be removed and the user should press Ctrl+Alt+Del to 
   reboot.  Ignore the instruction to replace the card and press
   a key to continue.

6. The computer may suspend after disconnecting external power after
   completing a Deep Cycle Discharge.

7. The computer may lock up if you remove an ATA PC Card while a
   suspend or resume operation is in progress.  You should always
   click the Windows 95 PC Card STOP button before removing an ATA
   PC Card.  This has the additional benefit of restarting the suspend
   inactivity timer to prevent an unexpected suspend from occuring
   when you remove the ATA PC Card.

8. If using COM1 Timeout option in SCU, after a period of inactivity
   DTR is turned off.  Before accessing the device again, the program
   should do an I/O read of a COM1 UART port and then allow time for
   the external device to power up.  Then, if necessary, the device
   can be initialized.  Only then will the device be ready for use.


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             Installation Instructions for XCPBIOS

                (C) Copyright Itronix Corp. 1999

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


To install the BIOS setup files on your mobile computer
-------------------------------------------------------

1. Copy all the files from the installation diskette to the 
   C:\XCTOOLS directory on your X-C 6250 mobile computer.


To reprogram the X-C 6250 BIOS Flash memory chip
------------------------------------------------

1. Attach external power.

2. Restart your computer.

3. While your computer is restarting, press F8 when the following
   text is displayed:

         Starting Windows 95

4. Choose 'Safe Mode command prompt only'.

5. Change to the XCTOOLS directory:

         CD \XCTOOLS

6. Enter the following at the DOS prompt:

         BIOSLOAD xxx

   where xxx is the version of BIOS you want to upgrade to.

   This process will upgrade your BIOS. Once it is finished, your
   computer will automatically reboot.