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       # STB SYSTEMS, INC.
       
          MACH - 512
       
          Category                     Video                             
          Video Types Supported        XVGA                              
          Video Processor              Unidentified                      
          Highest Resolution Supported 1024 x 768                        
          Data Bus Type                16-bit ISA                        
          Memory Type                  DRAM                              
          Maximum Onboard Memory       512KB                             
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |        Purpose         | Location |   Purpose   | Location |
          |------------------------+----------+-------------+----------|
          | 15-pin analog video    |    P1    | VGA feature |    P2    |
          | port                   |          | connector   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              VERTICAL REFRESH RATE SELECTION               |
          |------------------------------------------------------------|
          |            Mode            |              J1               |
          |----------------------------+-------------------------------|
          |          Standard          |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |            ERGO            |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BUS TYPE SELECTION                     |
          |------------------------------------------------------------|
          |  Setting   |      J4       |      J3       |      J2       |
          |------------+---------------+---------------+---------------|
          | ยป | 16-bit |  Pins 2 & 3   |  Pins 2 & 3   |  Pins 2 & 3   |
          |   |        |    closed     |    closed     |    closed     |
          |---+--------+---------------+---------------+---------------|
          |   | 8-bit  |  Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2   |
          |   |        |    closed     |    closed     |    closed     |
          +------------------------------------------------------------+