DIAMOND MULTIMEDIA SYSTEMS, INC.
================================

   SPEEDSTAR 24X

   Category                     Video                             
   Video Types Supported        XVGA                              
   Video Processor              WD90C31                           
   Highest Resolution Supported 1280 x 1024                       
   Data Bus Type                VESA local bus                    
   Memory Type                  VRAM                              
   Maximum Onboard Memory       1024KB                            

<gopher://bitreich.org/I/th99/v/C-D/50264-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |   Purpose    | Location |        Purpose        | Location |
   |--------------+----------+-----------------------+----------|
   | VESA Feature |   CN1    | 15-pin analog video   |   CN2    |
   | connector    |          | port                  |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     WAIT STATE SELECT                      |
   |------------------------------------------------------------|
   |         Zero Wait State          |           JP1           |
   |----------------------------------+-------------------------|
   |>>   |          Enabled           |         Closed          |
   |-----+----------------------------+-------------------------|
   |     |          Disabled          |          Open           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   VIDEO INTERRUPT SELECT                   |
   |------------------------------------------------------------|
   |              IRQ2               |           JP3            |
   |---------------------------------+--------------------------|
   |>>  |          Enabled           |          Closed          |
   |----+----------------------------+--------------------------|
   |    |          Disabled          |           Open           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      BIOS ROM ACCESS                       |
   |------------------------------------------------------------|
   |           Address Width           |          JP4           |
   |-----------------------------------+------------------------|
   |>> |    16--bit BIOS ROM access    |         Closed         |
   |---+-------------------------------+------------------------|
   |   |     8-bit BIOS ROM access     |          Open          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              800 X 600 MONITOR RETRACE SELECT              |
   |------------------------------------------------------------|
   |          Timing           |     SW1/1      |     SW1/2     |
   |---------------------------+----------------+---------------|
   |>> | 56Hz (non-interlaced) |       On       |      On       |
   |---+-----------------------+----------------+---------------|
   |   | 72Hz (non-interlaced) |       On       |      Off      |
   |---+-----------------------+----------------+---------------|
   |   | 60Hz (non-interlaced) |      Off       |      On       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             1024 X 768 MONITOR RETRACE SELECT              |
   |------------------------------------------------------------|
   |          Timing           |     SW1/3      |     SW1/4     |
   |---------------------------+----------------+---------------|
   |>> |   43Hz (interlaced)   |       On       |      On       |
   |---+-----------------------+----------------+---------------|
   |   | 70Hz (non-interlaced) |       On       |      Off      |
   |---+-----------------------+----------------+---------------|
   |   | 60Hz (non-interlaced) |      Off       |      On       |
   |---+-----------------------+----------------+---------------|
   |   | 72Hz (non-interlaced) |      Off       |      Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  ALTERNATE TIMING SELECT                   |
   |------------------------------------------------------------|
   |            Setting            |           SW1/5            |
   |-------------------------------+----------------------------|
   |            Normal             |                            |
   |-------------------------------+----------------------------|
   |           Alternate           |                            |
   +------------------------------------------------------------+