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    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1221                6-20-95

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    NETWORK ADAPTERS WITH BOOTROM ON BRAVO MS

    PROBLEM

    The BootROM uses a portion of conventional memory to execute its
    initialization code overwriting the MCB (Memory Control Blocks).  This causes
    POST errors and the system to lock up.

    CAUSE

    The new version of Plug-n-Play BIOS uses more space and increases the
    probability of a collision.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501534-XXX      BRAVO MS P/90
    501651-XXX      BRAVO MS-L P/90
    501660-XXX      BRAVO MS-T P/90
    501701-XXX      BRAVO MS P/75
    501702-XXX      BRAVO MS-L P/75
    501703-XXX      BRAVO MS-T P/75
    501754-XXX      BRAVO MS P-100

    SOLUTION

    Update the system BIOS to version 2.0 (AST part number 905541-310).

    To obtain the current system BIOS, contact an AST Authorized Service Center,
    or download file 05541310.EXE from AST's BBS (817) 230-6850, in the "Systems"
    file area.  AST's BBS supports modem speeds up to 28.8k bps.
    The above file will also be posted on:

    CompuServe
    Go ASTSUPPORT

    AST Worldwide Web Site
    http://www.ast.com

    For additional information on the Bravo MS P60/90, Premmia MX Pentium System
    Flash BIOS Update, see Software Bulletin # 0185 in the SBS library or
    AST's BBS.