(TXT) View Source
       
       # UNIDENTIFIED
       
          386SX MAINBOARD
       
          Processor    80386SX                                           
          Processor    16/20/25/33MHz                                    
          Speed        
          Chip Set     Unidentified                                      
          Max. Onboard 16MB                                              
          DRAM         
          Cache        None                                              
          BIOS         Award                                             
          Dimensions   254mm x 220mm                                     
          I/O Options  Floppy drive interface, IDE interface, parallel   
                       port, PS/2 mouse port, serial ports (2), VGA port 
          NPU Options  80387SX                                           
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | VGA port          |   CN1    | Speaker          |    J2    |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN2    | IDE interface    |    J3    |
          |                   |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN3    | Reset switch     |    J4    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN4    | Turbo switch     |    J5    |
          |-------------------+----------+------------------+----------|
          | PS/2 mouse port   |   CN5    | Turbo LED        |    J6    |
          |-------------------+----------+------------------+----------|
          | IDE interface     |   CN6    | External battery |    J8    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN7    | Riser Card       |   SL1    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J1    |                  |          |
          | keylock           |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Battery type select internal     |   J7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Battery type select external     |   J7   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select monochrome   |  JP2   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |  JP2   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | CMOS memory normal operation     |  JP6   | pins 1 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |  JP6   | pins 2 & 4 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Video mode select interlaced     |  JP7   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Video mode select non-interlaced |  JP7   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | On board VGA enabled             |  JP12  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | On board VGA disabled            |  JP12  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select VESA         |  JP14  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select VGA          |  JP14  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |      512KB       |    (2) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       1MB        |    (2) 256K x 9    |    (2) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       2MB        |     (2) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       4MB        |     (2) 1M x 9     |     (2) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (2) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       16MB       |     (2) 4M x 9     |     (2) 4M x 9     |
          +------------------------------------------------------------+