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    AST RESEARCH, INC.            TECHNICAL BULLETIN # 0966                8-29-94

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                 PREMMIA LX LOCK-UP RUNNING IBM 3270 CARD AND DYNACOM SOFTWARE

    PROBLEM:        1. The Premmia LX system experiences intermittent lock-ups
                       while running the IBM 3270 card (part number 53F6425) and
                       Dynacomm software for Windows.

                    2. While connected, the system resources (in program manager:
                       help menu selection; about program manager selection) go
                       from 73% free down to 20% and then the system locks-up or
                       loses the connection.

    CAUSE:          1. The advanced CMOS settings are incorrect.

                    2. Using incorrect version of Dynacomm software.

    SYSTEMS
    AFFECTED:           AST                                              REVISION
                    PART NUMBER        DESCRIPTION                         LEVEL

                    501288-XXX      PREMMIA LX P/60                         All
                    501289-XXX      PREMMIA LX P/66                         All

    SOLUTION:       1. In advanced CMOS Setup, change: "DISABLE SHADOW MEMORY
                       BASE:" to c0000h  and "DISABLE SHADOW MEMORY SIZE:" to
                       64KB.

                    2. Must run Dynacomm for Windows, version 3.00.12.