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          S3 Trio3D Video Device Driver for Windows NT 3.51

                              README File
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This file contains procedures for installing the S3 Trio video device
driver for Windows NT 3.51; it also contains other video-related
procedures.

The following topics are included in the file:

      1.0  Supported Color Depths and Refresh Rates
      2.0  Installing the S3 Video Device Driver for Windows NT 3.51
      3.0  Changing the Video Settings or Refresh Rate
      4.0  Setting Your Monitor to VGA Mode
      5.0  Trademarks


1.0  Supported Color Depths and Refresh Rates



     +================+==========================+=======================+
        Resolution         Color Depths           Refresh Rates       
          (Pels)                                      (Hz)            
     +----------------+--------------------------+-----------------------+
        640 x 480      256, 65536, True Color    60, 72, 75, 85       
     +----------------+--------------------------+-----------------------+
        800 x 600      256, 65536, True Color    56, 60, 72, 75, 85   
     +----------------+--------------------------+-----------------------+
        1024 x 768     256, 65536                43i, 60, 70, 75, 85  
     +----------------+--------------------------+-----------------------+
        1024 x 768     True Color                43i, 60, 70, 75      
     +----------------+--------------------------+-----------------------+
        1280 x 1024    256                       43i, 60, 75, 85      
     +----------------+--------------------------+-----------------------+
        1280 x 1024    65536                     43i, 60, 75          
     +----------------+--------------------------+-----------------------+
        1600 x 1200    256                       48i, 60, 75          
     +================+==========================+=======================+


2.0  Installing the S3 Video Device Driver for Windows NT 3.51
______________________________________________________________

To install the S3 video device driver:

Note:  If you are installing Windows NT 3.51 proceed through
       the Windows NT installation as normal.  The installation
       program will prompt you to choose a display mode.  Choose the
       CANCEL button from the Display Settings window to ignore this
       step for now.  The installation will now finish. Follow the
       steps outlined below to install the video device driver for
       the S3 Trio3D.


 1.  Start Windows NT 3.51 in VGA mode:  When the "Please select the
     operating system to start..." message is displayed, select
     WINDOWS NT WORKSTATION VERSION 3.51 [VGA MODE].

 2.  Double-click on the CONTROL PANEL icon in the Main window.

 3.  Double-click on the DISPLAY icon.

 4.  In the Display Settings window, click on the CHANGE DISPLAY TYPE
     button.  The Display Type window will appear.

 5.  Under Adapter Type, click on the CHANGE button.

 6.  In the Select Device window, click on the OTHER button.

 7.  If installing from diskette insert the S3 Trio3D video device driver
     diskette into the drive.

 8.  Edit the path statement in "Manufacturer's information located in:"
     if you are installing from other than your "A" drive. Click on OK.

 9.  Select S3 Video Driver Update... from the list; then click
     on the INSTALL button.

 10. If the following message appears: "This operation will change
     your system configuration.  Do you want to proceed anyway?",
     click on YES.

     o  If a message appears stating the driver is already installed
        on the system, and asks if you want to use the current or new
        drivers, be sure to select the NEW button.

     o  If prompted for the S3 Display driver files a second time, click
        on the CONTINUE button.

 11. When the message "The drivers were successfully installed" is
     displayed, remove any diskettes from the diskette drive; then
     click on the OK button.

 12. When the message "The driver could not be started dynamically.
     Please restart Windows NT to run with the new driver." is
     displayed, click on the OK button.

 13. In the Display Settings Change window, click on the RESTART NOW
     button.


3.0  Changing the Video Settings or Refresh Rate
________________________________________________

To change the video settings or refresh rate:

 1.  Start Windows NT 3.51.

 2.  In the Main window, double-click on the CONTROL PANEL icon.

 3.  Double-click on the DISPLAY icon.  The screen appearance can be
     changed using the Color Palette, Desktop Area, Refresh Frequency,
     and Font Size settings.

 4.  Make the desired changes; then click on the TEST button.

 5.  When the changes are satisfactory, click on OK, YES (if image is
     displayed), and then RESTART NOW to activate the changes.


4.0  Setting Your Monitor to VGA Mode
_____________________________________

To set your monitor to VGA mode:

 1.  Start Windows NT 3.51.

 2.  In the Main window, double-click on the CONTROL PANEL icon.

 3.  Double-click on the DISPLAY icon.

 4.  Click on the CHANGE DISPLAY TYPE button.

 5.  In the Adapter Type section, click on the CHANGE button

 6.  Select VGA COMPATIBLE GRAPHICS ADAPTER from the list.

 7.  Click on INSTALL.

 8.  Click on YES to change the system configuration.

 9.  If a message appears stating that the device driver is already
     installed, click on NEW.

 10. Click on CURRENT, OK, and OK; then restart Windows NT when
     prompted.


5.0  Trademarks
_______________

The following terms are trademarks of the IBM Corporation in the
United States or other countries or both:

IBM

The following terms are trademarks of other companies:

S3 and S3 Incorporated

Microsoft and Windows NT are trademarks or registered trademarks of
Microsoft Corporation.

Other company, product, and service names may be trademarks or
service marks of others.