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       # DIAMOND MULTIMEDIA SYSTEMS, INC.
       
          VIPER VLB
       
          Category                     Video                             
          Video Types Supported        XVGA                              
          Video Processor              Weitek                            
          Highest Resolution Supported 1280x1024                         
          Data Bus Type                32-bit VESA Local Bus             
          Memory Type                  DRAM/VRAM                         
          Maximum Onboard Memory       2MB                               
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |            Purpose            |          Location          |
          |-------------------------------+----------------------------|
          | 15-pin analog video port      |            CN1             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     IRQ2 CONFIGURATION                     |
          |------------------------------------------------------------|
          |              IRQ2              |            JP3            |
          |--------------------------------+---------------------------|
          | » |          Disabled          |     Pins 2 & 3 closed     |
          |---+----------------------------+---------------------------|
          |   |          Enabled           |     Pins 1 & 2 closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                ZERO WAIT STATE CONFIGURATON                |
          |------------------------------------------------------------|
          |             Setting              |           JP4           |
          |----------------------------------+-------------------------|
          | »    |          Enabled          |         Closed          |
          |------+---------------------------+-------------------------|
          |      |         Disabled          |          Open           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     VRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Setting            |            JP5             |
          |-------------------------------+----------------------------|
          |              2MB              |            Open            |
          |-------------------------------+----------------------------|
          |              1MB              |           Closed           |
          |------------------------------------------------------------|
          | Note: On some versions of the card, jumper JP5 may not be  |
          | present.                                                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  MONOCHROME CONFIGURATION                  |
          |------------------------------------------------------------|
          |                      Setting                      |  JP2   |
          |---------------------------------------------------+--------|
          | » |    No secondary monochrome adapter present    | Closed |
          |---+-----------------------------------------------+--------|
          |   | Secondary monochrome adapter is experiencing  |  Open  |
          |   |                   problems                    |        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  DRAM/VRAM CONFIGURATION                   |
          |------------------------------------------------------------|
          |   The Viper VLB comes in 1MB or 2MB versions. The exact    |
          |      configuration of VRAM and DRAM is unidentified.       |
          +------------------------------------------------------------+