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    AST RESEARCH, INC.         TECHNICAL BULLETIN # 1216                6-6-95

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    MANHATTAN G590 RECOGNIZES ONLY 64MB

    PROBLEM

    When the Manhattan G590 is configured with more than 64MB of system memory,
    only the first 64MB of memory will be recognized under Windows NT 3.5 and
    Novell Netware 4.1.  When attempting to manually register the memory under
    Novell 4.1, the system will recognize all but the last 16MB of installed
    memory.

    CAUSE

    Windows NT 3.5 and Novell Netware 4.1 require an INT15 call to recognize
    greater than 64MB of memory in the system.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION   REVISION

    501723-XXX      MANHATTAN G590     All Models

    SOLUTION

    Manhattan G590 BIOS release 2.00 (P/N 905545-038) adds the INT15 call to
    the BIOS allowing Windows NT 3.5 to automatically detect and use all memory
    in the system, up to the maximum 128MB.

    File 05545038.EXE can be found on AST's BBS (817) 230-6850, in the "Systems"
    file area.  AST's BBS supports modem speeds up to 28.8k bps.
    The above file will also be posted on:

    CompuServe
    Go ASTSUPPORT

    AST Worldwide Web Site
    http://www.ast.com

    For further information on the Manhattan G590 BIOS, see Software Bulletin
    # 0186 in the SBS library of AST's BBS.

    Novell Netware 4.1 requires BIOS release 2.00 to use memory above 64MB.
    However, Novell Netware will not automatically detect the memory over 64MB.
    The memory must be manually registered through Novell Netware 4.1 in order to
    be used by the system.  For more information on manually registering system
    memory, see your Novell Netware documentation.