(TXT) View Source
       
       # AST RESEARCH, INC.
       
          PREMIUM/386
       
          Processor         80386DX                                      
          Processor Speed   20MHz                                        
          Chip Set          AST                                          
          Max. Onboard DRAM None                                         
          Cache             None                                         
          BIOS              AST                                          
          Dimensions        330mm x 218mm                                
          I/O Options       32-bit external memory card slot             
                                                                         
                            Parallel port                                
                                                                         
                            Serial port (2)                              
                                                                         
                            SMART expansion/16-bit ISA expansion slots   
                            (3)                                          
          NPU Options       80287/80387                                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | 32-bit external   |    J7    | Front panel      |    P5    |
          | memory card       |          | switches & LEDs  |          |
          |-------------------+----------+------------------+----------|
          | SMART expansion   | S1, S2 & | Speaker          |    P6    |
          | or 16-bit ISA     |    S3    |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |    P2    | External battery |    P8    |
          | header            |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |    P3    | Optional ROM     |   U88    |
          | interface (A: and |          | (even)           |          |
          | B:)               |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Third floppy      |    P4    | Optional ROM     |   U89    |
          | drive interface   |          | (odd)            |          |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   COM1   | Parallel port    |   LPT1   |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   COM2   | Keyboard         |   KYBD   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |                Function                | Jumper | Position |
          |----------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E1   |  closed  |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E2   |  closed  |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E3   |  closed  |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E4   |   open   |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E5   |  closed  |
          |---+------------------------------------+--------+----------|
          | » | Factory configured - do not alter  |   E6   |   open   |
          |------------------------------------------------------------|
          | Note:Jumper E6 may not appear on all board revisions.      |
          +------------------------------------------------------------+
       
 (IMG) IMG 3
          
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               |  Switch   | Position |
          |                                     |    SW1    |          |
          |-------------------------------------+-----------+----------|
          | » | Parity check enabled            | switch 7  |  closed  |
          |---+---------------------------------+-----------+----------|
          |   | Parity check disabled           | switch 7  |   open   |
          |---+---------------------------------+-----------+----------|
          | » | Factory configured - do not     | switch 8  |   open   |
          |   | alter                           |           |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 1MB  | (4) 256K x  |    NONE     |    NONE    |    NONE    |
          |      |      9      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (4) 256K x  | (4) 256K x  |    NONE    |    NONE    |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 3MB  | (4) 256K x  | (4) 256K x  | (4) 256K x |    NONE    |
          |      |      9      |      9      |     9      |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 256K x |
          |      |      9      |      9      |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (4) 256K x  | (4) 1M x 9  |    NONE    |    NONE    |
          |      |      9      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (4) 256K x  | (4) 256K x  | (4) 1M x 9 |    NONE    |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 7MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 1M x 9 |
          |      |      9      |      9      |     9      |            |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (4) 256K x  | (4) 1M x 9  | (4) 1M x 9 |    NONE    |
          |      |      9      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (4) 256K x  | (4) 256K x  | (4) 1M x 9 | (4) 1M x 9 |
          |      |      9      |      9      |            |            |
          |------+-------------+-------------+------------+------------|
          | 13MB | (4) 256K x  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
          |      |      9      |             |            |            |
          |------------------------------------------------------------|
          | Note:Bank 0 must be populated with 256KB SIMMs.            |
          +------------------------------------------------------------+
       
       +----------------------------------------------------------------------+
       |                      DRAM SWITCH CONFIGURATION                       |
       |----------------------------------------------------------------------|
       |Size|SW1/switch|SW1/switch|SW1/switch|SW1/switch|SW1/switch|SW1/switch|
       |    |    1     |    2     |    3     |    4     |    5     |    6     |
       |----+----------+----------+----------+----------+----------+----------|
       |1MB |   open   |   open   |   open   |   open   |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |2MB |   open   |  closed  |   open   |   open   |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |3MB |   open   |  closed  |   open   |  closed  |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |4MB |   open   |  closed  |   open   |  closed  |   open   |  closed  |
       |----+----------+----------+----------+----------+----------+----------|
       |5MB |  closed  |   open   |   open   |   open   |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |6MB |   open   |  closed  |  closed  |   open   |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |7MB |   open   |  closed  |   open   |  closed  |  closed  |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |9MB |  closed  |   open   |  closed  |   open   |   open   |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |10MB|   open   |  closed  |  closed  |   open   |  closed  |   open   |
       |----+----------+----------+----------+----------+----------+----------|
       |13MB|  closed  |   open   |  closed  |   open   |   open   |   open   |
       +----------------------------------------------------------------------+