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    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1383                1-3-96

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        Premmia GX P/90 Corrupt Packets/Phantom MAC Addresses with Microsoft
    			     Client for Netware

    PROBLEM

    The Premmia GX P/90 system may send corrupt packets/phantom MAC
    addresses while using Microsoft Client for Netware from within Win 95.

    CAUSE

    The Bus Timer selection in Windows 95, for the AMD ethernet adapter, is set
    to "default (six micro seconds)" at the time of setup.
    The integrated AMD adapter used on the Premmia GX P/90 is susceptible to
    bus timing issues between itself and other bus mastering devices that occupy
    the motherboard, such as the floppy controller.

    SOLUTION

    If corrupt packets or phantom MAC addresses are seen, AST recommends
    BUS timing value settings be changed to eleven micro seconds, by doing the
    following:

    1. From the Control Panel, Network, select AM2100/Properties/Advanced.

    2. Change the BUS TIMER from Default to 11 micro seconds for optimum
       performance on the bus, when using the MS Network module.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501457-XXX      Premmia GX P/90