AST RESEARCH, INC.
==================

   BRAVO 486/25

   Processor        80486DX                                       
   Processor Speed  25MHz                                         
   Chip Set         AST                                           
   Max. Onboard     16MB                                          
   DRAM             
   Cache            None                                          
   BIOS             AST                                           
   Dimensions       355mm x 251mm                                 
   I/O Options      Bus mouse port, floppy interface, IDE         
                    interface, parallel port, serial ports (2),   
                    VGA port                                      
   NPU Options      80387SX                                       

<gopher://bitreich.org/I/th99/m/A-B/30900-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location | Purpose           | Location |
   |------------------+----------+-------------------+----------|
   | Bus mouse port   |   J12    | IDE interface     |   J22    |
   |------------------+----------+-------------------+----------|
   | Parallel port    |   J13    | Floppy drive      |   J24    |
   |                  |          | interface         |          |
   |------------------+----------+-------------------+----------|
   | Primary serial   |   J14    | External battery  |   J26    |
   | port             |          |                   |          |
   |------------------+----------+-------------------+----------|
   | VGA port         |   J18    | Speaker           |   J27    |
   |------------------+----------+-------------------+----------|
   | VGA pass-through |   J19    | Front panel       |   J29    |
   |                  |          | switch/display    |          |
   |------------------+----------+-------------------+----------|
   | Secondary serial |   J20    | External HD card  |   J40    |
   | port header      |          | access LED        |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function             | Jumper/Switch | Position |
   |---------------------------------+---------------+----------|
   |>> | Parity check enabled        |      E1       |  Closed  |
   |---+-----------------------------+---------------+----------|
   |   | Parity check disabled       |      E1       |   Open   |
   |---+-----------------------------+---------------+----------|
   |>> | VGA interface enabled       |     SW1/1     |    On    |
   |---+-----------------------------+---------------+----------|
   |   | VGA interface disabled      |     SW1/1     |   Off    |
   |---+-----------------------------+---------------+----------|
   |>> | Password check normal       |     SW1/2     |   Off    |
   |   | operation                   |               |          |
   |---+-----------------------------+---------------+----------|
   |   | Password clear              |     SW1/2     |    On    |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |     SW1/3     |   Off    |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |     SW1/4     |   Off    |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |     SW1/5     |    On    |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |     SW1/6     |    On    |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | PS/2 mode enabled (AT mode  |     SW1/7     |    On    |
   |   | disabled)                   |               |          |
   |---+-----------------------------+---------------+----------|
   |   | PS/2 mode disabled (AT mode |     SW1/7     |   Off    |
   |   | enabled)                    |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Monitor type select fixed   |     SW1/8     |   Off    |
   |   | frequency                   |               |          |
   |---+-----------------------------+---------------+----------|
   |   | Monitor type select multi   |     SW1/8     |    On    |
   |   | frequency                   |               |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       2MB        |     (2) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       10MB       |     (2) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       10MB       |     (4) 4M x 9     |     (2) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+