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    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1163                5-2-95

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    				UPDATE PROCEDURE MANHATTAN P/V BIOS 1.09

    PROBLEM

    When updating the Manhattan P/V BIOS to BIOS 1.09, the system does not
    properly update all BIOS features.

    CAUSE

    BIOS Release 1.09 includes newly added features and BIOS fields.
    An example of such a field is the addition of memory paging in Manhattan V
    systems with non-ECC memory.

    The AST implementation of flash BIOS will only update existing BIOS fields.
    Newly added fields in the flash BIOS are not automatically added by the BIOS
    update utility.  The CMOS memory must be cleared in order to load all of the
    BIOS fields.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    All Manhattan P and V systems.

    SOLUTION

    It is necessary to clear the EISA CMOS before performing the flash BIOS
    update.

    CAUTION

    Ensure that all EISA and System Setup options have been printed or recorded
    before erasing the EISA CMOS.  It is recommended that the EISA settings be
    saved to a System Configuration File (.SCI), for reloading after the flash
    procedure is completed.  All EISA configuration information will be cleared
    in performing this procedure.

    NOTE

    The EISA CMOS memory must be cleared, regardless of whether EISA
    adapter boards are installed in the system.

    To perform the flash BIOS procedure:

    1. Open the system and located switch block SW1 on the system board.
       See AST Manhattan P/V Series User's Manual (P/N 003027-001) for more
       information.

    2. With the system powered OFF, clear EISA CMOS memory by changing switch
       SW1-4 on the system board to the ON position.  The EISA CMOS will be
       cleared when the system is powered ON.

    3. Allow the system to count the system memory.  The system will then
       indicate that the EISA CMOS memory has been lost.

    4. Power OFF the system, and move SW1-4 back into the OFF position.

    5. Power the system ON and enter the System Setup program, by pressing
        during system POST.

    6. Ensure that the Boot Device field is set to "Try Floppy First."

    7. Exit System Setup choosing Save, Exit, and Update Flash BIOS.

    8. A message will appear providing instructions to complete the BIOS
       update.

    9. When the BIOS update has completed, remove the BIOS update diskette
       from the floppy drive, and reconfigure the system using System Setup and
       the EISA Configuration Utility.  For more information see the Manhattan P
       and V Series User's Manual (P/N 003027-001).