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       # DIAMOND MULTIMEDIA SYSTEMS, INC.
       
          VIPER SE VLB/VIPER PRO VIDEO
       
          Category                     Video                             
          Video Types Supported        XVGA                              
          Video Processor              Weitek P9100                      
          Highest Resolution Supported 1600 x 1280                       
          Data Bus Type                32-bit VESA Local Bus             
          Memory Type                  VRAM                              
          Maximum Onboard Memory       2MB                               
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Purpose         | Location |   Purpose   | Location |
          |------------------------+----------+-------------+----------|
          | 15-pin analog video    |   CN1    | VGA feature |   CN2    |
          | port                   |          |  connector  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              VIDEO POWER INTERRUPT SELECTION               |
          |------------------------------------------------------------|
          |           » IRQ            |              JP7              |
          |----------------------------+-------------------------------|
          | »   |          9           |       Pins 2 & 3 closed       |
          |-----+----------------------+-------------------------------|
          | »   |          15          |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                EGA INTERRUPT CONFIGURATION                 |
          |------------------------------------------------------------|
          |            IRQ2            |              JP8              |
          |----------------------------+-------------------------------|
          | » |        Disabled        |       Pins 1 & 2 closed       |
          |---+------------------------+-------------------------------|
          |   |        Enabled         |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   VL-BUS SPEED SELECTION                   |
          |------------------------------------------------------------|
          |           Speed            |              JP9              |
          |----------------------------+-------------------------------|
          | » |         33KHz          |       Pins 2 & 3 closed       |
          |---+------------------------+-------------------------------|
          |   |         50KHz          |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                MISCELLANEOUS TECHNICAL NOTE                |
          |------------------------------------------------------------|
          |   Note: The Viper SE VLB/Viper Pro Video comes in two      |
          |   versions, a 2MB upgradable to 4MB & a standard 2MB       |
          |   version. The diagram above is the standard 2MB version.  |
          +------------------------------------------------------------+