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    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1439                 2-14-96

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    	Premmia GX P/100 Requires PCIIDE.VXD If Adding Teac IDE CD-ROM

    PROBLEM

    When installing Teac IDE CD-ROM in the secondary IDE channel, at the
    "Starting Windows95 for the first time" banner, the following error message
    may appear:

        "Your multi-function device (CMD PCI-0646 Bus Master PCI to IDE
        Controller) has some child device using 32-bit drivers and other using
        compatibility-mode drivers.  This configuration is not supported, so your
        system has been halted to prevent corruption.

        After you restart your computer. Windows will use compatibility-mode
        drivers for each child device attached to this multi-function device.
        If you want to use 32-bit drivers, you may be able to obtain an updated
        driver for the device that caused the problem by contacting your hardware
        manufacturer, or you can disable the device.

        Press any key to continue. "

    After this message, by rebooting the system again, Windows will start
    without a problem.  However, in the Control Panel "System" Device
    Manager, you can see there is a exclamation mark on the First IDE Channel,
    Secondary IDE Channel, and the IDE/ESDI drives.

    CAUSE

    Teac IDE CD-ROM is 16-bit child device but the PCI.VXD does not support
    both 16 bit and 32 bit child devices at the same time.  PCIIDE.VXD does.

    SOLUTION

    1. Run the Dual Install first.

    2. Replace the PCI.VXD file with PCIIDE.VXD.  PCIIDE.VXD is included
       in file PCI.EXE which can be download from Microsoft's web-site

    	     http://www.microsoft.com/kb/softlib/mslfiles/pci.exe

       or Microsoft's BBS (206) 936-6735.

    This will clear the '!' on the CMD chip.  Then add the Teac CD-ROM on the
    secondary channel.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    All Premmia GX P/100 systems.