Triones
             Bus Master EIDE/ATAPI Device Drivers for Intel PIIX
                           WINDOWS NT 3.5/3.51
                             Revision  3.22

                             (March 15,1997)

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NOTE:
    This version of driver doesn't support PIIX4 (TX) motherboards!

1   INSTALLATION
    1.  From the Program Manager, double click on "Windows NT Setup" in the
        Main group.
    2.  Select "Options/Add/Remove SCSI Adapters..."
    3.  Click on Add.
    4.  The "Select SCSI Adapter Option" dialog will appear;
        select "Other (Requires a disk from a hardware manufacturer)"
        from the "Adapter:" list box.
    5.  Next, the "Insert Diskette" dialog box will appear; insert the
        Triones PIIX/PIIX3 Bus Master EIDE/ATAPI Driver disk into Drive A:
        and type in "a:\winnt35" and <Return>.
    6.  Next, the "Select OEM Option" dialog box will appear;  select
        "PIIX/PIIX3 Bus Master EIDE/ATAPI" and click "OK."
    7.  Next, the "Select SCSI Adapter Option" dialogbox will appear;
        click on the "Install" button in the dialog box. If installation
        is successful, the "SCSI Adapter Setup" dialog box will reappear,
        and "PIIX/PIIX3 Bus Master EIDE/ATAPI" will be listed. That means the
        driver is installed.
    8.  Reboot your system to load the driver.

2   DE-INSTALLATION
    If you want to de-install the Triones PIIX/PIIX3 Bus Master EIDE/ATAPI
    Driver, you should keep the EIDE/ATAPI environment the same as when you
    installed the driver. Otherwise, you may meet some problems.

    1.  From the Program Manager, double click on "Windows NT Setup" in the
        Main group.
    2.  Select "Options/Add/Remove SCSI Adapters...".
    3.  Select "PIIX/PIIX3 Bus Master EIDE/ATAPI" and then click on Remove.
    4.  Exit "Windows NT Setup" and reboot the system.

3   TROUBLESHOOTING
3.3.1. Overriding drive capabilities
    If the Windows NT 3.5 does not work properly after the installation,
    it could be that the device drives report wrong capabilities.  The
    driver provides 6 parameters for the user to override the capabilities
    reported by the connected device drives.

    1.  UseLbaMode:
    This is a double word parameter specifying if we want to use LBA mode on
    a particular disk drive. We only use the low word. We split the 16-bit
    low word into 4 4-bit fields,  each corresponding to one possible
    connected disk drive:
    15              12 11               8 7             4 3              0
    +-----------------+------------------+---------------+----------------+
    | Secondary/Slave | Secondary/Master | Primary/Slave | Primary/Master |
    +-----------------+------------------+---------------+----------------+
    If a field is set to non-zero, then we are going to use LBA mode on the
    corresponding disk drive. The default value is 0xF.

    2.  UseMultiBlock:
    This is a double word parameter specifying if we want to use multiple
    block commands on a particular disk drive. We only use the low word.
    We split the 16-bit low word into 4 4-bit fields, each corresponding
    to one possible connected disk drive:
    15             12 11               8 7             4 3              0
    +-----------------+------------------+---------------+----------------+
    | Secondary/Slave | Secondary/Master | Primary/Slave | Primary/Master |
    +-----------------+------------------+---------------+----------------+
    If a field is set to non-zero, then we are going to use multiple block
    command on the corresponding disk drive. The default value is 0xF.

    3.  PrimaryMasterMode:
    4.  PrimarySlaveMode:
    5.  SecondaryMasterMode:
    6.  SecondarySlaveMode:
    These are double word parameters. We can use them to override DMA/PIO
    timing modes for the connected drives. Some drives may have firmware
    bugs causing them to report the wrong ATA DMA/PIO timing mode to the
    driver. Most notable are the multitude of drives on the market which
    claim to support PIO Mode 2 when in fact, they really are Mode 0 or
    Mode 1 drives.  Incorrect ATA DMA/PIO timing modes may cause system
    boot failure or data corruption. Therefore, the driver includes a
    facility whereby the user may override the vendor-specified ATA timing
    mode.

    The possible parameter values are:
        0x00    Use DMA with Single-Word DMA mode 0
        0x01    Use DMA with Single-Word DMA mode 1
        0x02    Use DMA with Single-Word DMA mode 2
        0x03    Use DMA with Multi-Word DMA mode 1
        0x04    Use DMA with Multi-Word DMA mode 2
        0xf0    Use PIO with PIO mode 0
        0xf1    Use PIO with PIO mode 1
        0xf2    Use PIO with PIO mode 2
        0xf3    Use PIO with PIO mode 3
        0xf4    Use PIO with PIO mode 4
        0xf5    Use PIO with PIO mode 5
        0xff    Use PIO with driver-decided default PIO mode
        0xffffffff
                Default value, the driver will decide what operation
                (DMA/PIO) and what mode to use by itself.

    To set the parameters:
    1)  From the Program Manager, select File/Run and type in "REGEDT32".
    2)  In the HKEY_LOCAL_MACHINE subwindow, open the
        SYSTEM/CurrentControlSet/Services/IDEAtapi/Parameters then
    3)  Double click on the parameter name you want to change,  and make
        your change. Be sure to click on the Radix/Hexdecimal button before
        clicking OK.
    4)  Reboot your system.