                                                             Last Revised
    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1660          07/15/97

    TITLE:  Manhattan S6200 and Adaptec 2940UW

    ISSUE

       If an Adaptec 2940UW SCSI controller is installed in the
       secondary PCI bus, slot numbers J4 to J7, Windows NT version 4.0
       installation will fail when the user selects auto detection for
       the mass storage device driver. The following error message will
       appear during setup disk # 3:

          Hardware Malfunction
          Call you hardware vender for support
          NMI: EISA IOCHKERR board E
          The system has halted

       This issue affects the following systems: 501832 and 503076.

    BACKGROUND

       N/A

    ACTION

       AST strongly recommends that the user install the Adaptec 2940UW
       mass storage device in the primary PCI bus slot (#1 or #2) to
       eliminate upgrade or installation issues. This is the default
       configuration.

    NOTES

       N/A

    TAN N/A

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