(TXT) View Source
       
       # UNIDENTIFIED
       
          WD90C31 LOCAL BUS ACCELERATOR
       
          Category                     Video                             
          Video Types Supported        XVGA                              
          Video Processor              WD90C31                           
          Highest Resolution Supported 1280 X 1024                       
          Data Bus Type                VESA local bus                    
          Memory Type                  DRAM                              
          Maximum Onboard Memory       1024KB                            
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Purpose         | Location |   Purpose   | Location |
          |------------------------+----------+-------------+----------|
          | 15-pin analog video    |    J1    | VGA feature |    J2    |
          | port                   |          | connector   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DELAY CYCLE SELECTION                    |
          |------------------------------------------------------------|
          |            Delay            |        JP1         |   JP2   |
          |-----------------------------+--------------------+---------|
          | 1 clock cycle (486/Pentium) | Pins 1 & 2 closed  |  Open   |
          |-----------------------------+--------------------+---------|
          |    2 clock cycles (386)     | Pins 2 & 3 closed  | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              800 X 600 REFRESH RATE SELECTION              |
          |------------------------------------------------------------|
          |      Refresh       |       SW1/1       |       SW1/2       |
          |--------------------+-------------------+-------------------|
          |       56.5Hz       |        Off        |        Off        |
          |--------------------+-------------------+-------------------|
          |       72.1Hz       |        On         |        Off        |
          |--------------------+-------------------+-------------------|
          |       60.5Hz       |        Off        |        On         |
          |--------------------+-------------------+-------------------|
          |       56.5Hz       |        On         |        On         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             1024 X 768 REFRESH RATE SELECTION              |
          |------------------------------------------------------------|
          |    Refresh    |      Mode      |    SW1/3    |    SW1/4    |
          |---------------+----------------+-------------+-------------|
          |    86.7Hz     |   Interlaced   |     Off     |     Off     |
          |---------------+----------------+-------------+-------------|
          |    70.2Hz     | Non-Interlaced |     On      |     Off     |
          |---------------+----------------+-------------+-------------|
          |    60.2Hz     | Non-Interlaced |     Off     |     On      |
          |---------------+----------------+-------------+-------------|
          |    72.3Hz     | Non-Interlaced |     On      |     On      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             HORIZONTAL REFRESH RATE SELECTION              |
          |------------------------------------------------------------|
          |            Refresh            |           SW1/5            |
          |-------------------------------+----------------------------|
          |           31.5 KHz            |            Off             |
          |-------------------------------+----------------------------|
          |            40 KHz             |             On             |
          +------------------------------------------------------------+