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    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1127                4-5-95

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    			  BRAVO MS-L 4/66D WINDOWS GPF ERRORS & MEM.EXE

    PROBLEM

    The Bravo MS-L 4/66D system may experience the following problems:

    1. Loss of Windows Groups while in Windows.

    2. Incorrect amount of system memory reported by MEM.EXE.  For example,
    the system has 8 MB of memory but MEM.EXE may report 66 MB.

    CAUSE

    The +5V power supply may not remain at +5V during power surges.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501586-XXX     BRAVO MS-L 4/66D

    SOLUTION

    If the Bravo MS-L 4/66D system is experiencing the problems described above,
    replace the power supply (part number 230433-002) with part number 230433-005.

    To obtain this part, call your AST Authorized Service Center.

    CAUTION

    This modification should be performed by a qualified service technician.
    It is strongly recommended that this change be completed by an AST Authorized
    Service Center.  In no case will AST Research, Inc. be liable for damage to
    the system and its components, or loss of data caused by improper
    modification.

    INSTALLATION PROCEDURE

    Removal and replacement of system "Field Replaceable Units" (FRUs) should only
    be performed according to the installation procedures approved and prescribed
    by AST Research, Inc.

    CHECK-OUT PROCEDURE

    To verify proper operation of the system upon completion of this change,
    follow the setup and test procedures described in the AST User's Manual.

    NOTE

    Warranty reimbursement for this change requires prior AST Research, Inc.
    approval.