(TXT) View Source
       
       # UNIDENTIFIED
       
          80386 MOTHERBOARD
       
          Processor             80386DX                                  
          Processor Speed       25MHz                                    
          Chip Set              C & T                                    
          Max. Onboard DRAM     8MB                                      
          Cache                 None                                     
          BIOS                  AMI/Award/Phoenix                        
          Dimensions            330mm x 218mm                            
          I/O Options           32-bit external memory card slots (2)    
          NPU Options           80287/80387                              
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Speaker           |   J11    | 32-bit external  |    S1    |
          |                   |          | memory card      |          |
          |-------------------+----------+------------------+----------|
          | Turbo switch      |   J12    | 32-bit external  |    S2    |
          |                   |          | memory card      |          |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J13    | Reset switch     |   SW1    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | External battery  |   JP10   | Turbo LED        |   SW2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Monitor type select color      |  JP8   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select monochrome |  JP8   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          | » | CMOS memory normal operation   |  JP9   |     Open     |
          |---+--------------------------------+--------+--------------|
          |   | CMOS memory clear              |  JP9   |    Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |  Size  |   Bank 0    |  Bank 1  |   Bank 2    |   Bank 3   |
          |--------+-------------+----------+-------------+------------|
          |  2MB   | (4) 256K x  | (4) 256K |    NONE     |    NONE    |
          |        |      9      |   x 9    |             |            |
          |--------+-------------+----------+-------------+------------|
          |  8MB   | (4) 1M x 9  | (4) 1M x |    NONE     |    NONE    |
          |        |             |    9     |             |            |
          |--------+-------------+----------+-------------+------------|
          |  10MB  | (4) 1M x 9  | (4) 1M x | (36) 41256  | (36) 41256 |
          |        |             |    9     |             |            |
          |--------+-------------+----------+-------------+------------|
          |  16MB  | (4) 1M x 9  | (4) 1M x | (36) 411000 |    (36)    |
          |        |             |    9     |             |   411000   |
          |------------------------------------------------------------|
          | Note:Banks 2 & 3 are used when a 32-bit external memory    |
          | card is installed.                                         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   NPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Type      |     JP3      |     JP6      |     JP7      |
          |---------------+--------------+--------------+--------------|
          |     80287     |     Open     |    Closed    |     Open     |
          |---------------+--------------+--------------+--------------|
          |     80387     |    Closed    |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |   Disabled    |     Open     |     Open     |     Open     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   NPU MODE CONFIGURATION                   |
          |------------------------------------------------------------|
          |          Setting          |        JP2        |    JP4     |
          |---------------------------+-------------------+------------|
          |   Synchronous with cpu    | pins 1 & 2 closed | pins 2 & 3 |
          |                           |                   |   closed   |
          |---------------------------+-------------------+------------|
          |     Synchronous with      | pins 2 & 3 closed | pins 1 & 2 |
          |      oscillator osc1      |                   |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BIOS CONFIGURATION                     |
          |------------------------------------------------------------|
          |     Setting      |        JP1         |        JP20        |
          |------------------+--------------------+--------------------|
          |    AMI/Award     | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |     Phoenix      | pins 2 & 3 closed  | pins 2 & 3 closed  |
          +------------------------------------------------------------+