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    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1147              4-19-95

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       INTEL ETHEREXPRESS PRO/100 PCI CAUSES ERROR MESSAGE ON BRAVO MS 4/XXX

    PROBLEM

    When using an Intel EtherExpress Pro/100 ethernet adapter in a Bravo MS 4/100t
    system, when loading EMM386 or using the Memory Browser in MSD, the system
    will display the error message:

    [12.03] The computer has a memory problem and needs to be serviced.

    CAUSE

    When an application attempts to write to the memory space used by the Intel
    Pro/100 adapter, the adapter generates a Target Abort signal to the PCI bus
    controller.  The PCI bus controller sees this signal and generates a system
    error signal.  The system error signal is redirected to the NMI line which
    finally generates the parity error message displayed on the screen.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501442-001                             BRAVO MS 4/100

    SOLUTION

    Run the ICU program that comes with the computer, and look for the address
    space used by the Intel PCI Pro/100 Adapter.  By INCLUDING that memory area,
    (see below) current versions of EMM386 will not attempt to write to that
    memory area, and will also create a UMB or EMS page frame OVER that memory
    area and eliminate the error message.

    C:\DOS\EMM386.EXE I=C800-C9FF  (The shared area may differ form yours)