    AST RESEARCH, INC.      TECHNICAL BULLETIN # 1499             6-6-96

    TITLE: Barr Adapter Fails SNA Diags, WinNT

    SUMMARY

       The Barr Channel adapter may fail self-test diagnostics for SNA
       application under Windows NT 3.51 in a Manhattan P and V system.

       This issue applies to the following systems: 501501, 501502, 501503,
       and 501830.

    ISSUE

       When running the Barr Channel self-test under SNA application,
       the loopback test may fail with a Direct Memory Access (DMA) ERROR.
       After clicking the icon for Barr Channel Adapter diagnostics,
       the following response is visible on the screen:

         Self-test started
         Loopback Failed - DMA ERROR
         Self-test Failed

                    Adapter serial number   200075.2
                    Firmware Version        0000-03.01
                    Diagnostics Version     0000-00.00

    BACKGROUND

       N/A

    ACTION

       Contact Barr Systems at (800)227-7797 or (352) 491-3100
       for a replacement board.

    NOTES

       N/A

    TAN 000640TT

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