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                               

<gopher://bitreich.org/I/th99/v/C-D/51374-1.png>
   

   +------------------------------------------------------------+
   |                        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.       |
   +------------------------------------------------------------+