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                             

<gopher://bitreich.org/I/th99/v/S-T/50968-1.png>
   

   +------------------------------------------------------------+
   |                        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       |
   |------------+---------------+---------------+---------------|
   |>> | 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     |
   +------------------------------------------------------------+