    AST RESEARCH, INC.              TECHNICAL BULLETIN # 0940             6-24-94

                      POWEREXEC DRIVE BAY ADAPTER FAILING IN A PREMMIA LX

    PROBLEM:        The PowerExec Hard Drive Bay Adapter will not function in a
                    Premmia LX desktop.

    CAUSE:          The Premmia LX supports up to four IDE drives on the
                    motherboard.  To support this, the Premmia LX uses the I/O
                    address range of 170-177h for the secondary hard disk adapter.
                    Since the PowerExec Drive Bay Adapter is designed as a
                    secondary hard disk adapter, it also uses the same I/O range
                    causing a memory address conflict.

    SYSTEMS
    AFFECTED:       All PowerExec Hard Drive Bay Adapters.

                        AST                                              REVISION
                    PART NUMBER           DESCRIPTION                      LEVEL

                    500985-001      P/EXEC HARD DISK RECEPTACLE             All

    SOLUTION:       1) If the Premmia LX has two IDE hard drives or less, remove
                       the PowerExec Drive Bay Adapter card.  Using the IDE cable
                       provided, directly connect the drive bay receptacle to the
                       PCI IDE hard drive connector located at position J7H1 on the
                       Premmia LX system board.
                    2) Enter CMOS SET-UP and verify that all hard drive types
                       are set to AUTO.  This will allow the PowerExec drive to be
                       detected and configured automatically upon POST.

    CAUTION:        In no case will AST Research, Inc. be liable for damage to the
                    system or loss of data caused by improper or faulty
                    installation of this file.