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    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1275                8-1-95

    =

            DPT PM3224 DOES NOT WORK WITH IRQ 2 (9) IN SOME PCI YSTEMS

    PROBLEM

    When a DPT PM3224 PCI DAC is installed in the top PCI slot (closest to the
    CPU board) in a Manhattan P (non DAC model with p/n 202620-002 system
    board), the following occur:

    1.  The system hangs after the DPT PM3224 BIOS is initialized.
    2.  No SCSI devices are shown
    3.  The system does not complete a boot to be able to load the operating
         system.
    4.  The number 98 is displayed on the 4 digit display.
    5.  The 9th LED on the PM3224 is lit.

    CAUSE

    There is an IRQ conflict between the PM3224/90 and IRQ 2 in some PCI systems.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    501502-XXX      MANHATTAN P 5090

    SOLUTION

    This problem is fixed with the latest Manhattan P/V BIOS revision 1.10 or
    higher (AST part number 905547-039), and EISA Configuration Utilities
    revision 1.07 or higher (AST part number 911371-038).

    Obtain the following part numbers by calling AST Technical Support at
    (800) 717-1278 or downloading the files from AST's BBS.

    File 05547039.EXE MANHATTAN P/V flash BIOS revision 1.10, and
    File 11371038.EXE EISACU for AST PCI/EISA based systems revision 1.07
    can be found on AST's BBS (817) 230-6850.
    AST's BBS supports modem speeds up to 28.8k bps.  The above files will also
    be posted on:

    CompuServe
    Go ASTSUPPORT

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

    For additional information on the Manhattan P/V flash BIOS, see Software
    Bulletin 0178D.
    For additional information on the EISACU for AST PCI/EISA based systems,
    see Software Bulletin 0211B.

    The above mentioned bulletins are located in the SBS library of AST's BBS.