(TXT) View Source
       
       # UNIDENTIFIED
       
          386SX-20/25
       
          Processor         80386SX                                      
          Processor Speed   20/25MHz                                     
          Chip Set          Headland                                     
          Max. onboard DRAM 8MB                                          
          Cache             None                                         
          BIOS              AMI                                          
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       80387SX                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | External battery    |   JP3    | Turbo Switch   |   JP11   |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   JP9    | Speaker        |   JP12   |
          |---------------------+----------+----------------+----------|
          | Turbo LED           |   JP10   | Reset          |   JP13   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper  | Position  |
          |--------------------------------------+---------+-----------|
          | » | Monitor type select color        |   JP2   |  Closed   |
          |---+----------------------------------+---------+-----------|
          |   | Monitor type select monochrome   |   JP2   |   Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |   Bank 0   |  Bank 1  |    Bank 2    |   Bank 3    |
          |-------+------------+----------+--------------+-------------|
          | 512KB | (2) 256K x |   NONE   |     NONE     |    NONE     |
          |       |     9      |          |              |             |
          |-------+------------+----------+--------------+-------------|
          |  1MB  | (2) 256K x | (2) 256K |     NONE     |    NONE     |
          |       |     9      |   x 9    |              |             |
          |-------+------------+----------+--------------+-------------|
          | 1.5MB | (2) 256K x | (2) 256K | (2) 256K x 9 |    NONE     |
          |       |     9      |   x 9    |              |             |
          |-------+------------+----------+--------------+-------------|
          |  2MB  | (2) 256K x | (2) 256K | (2) 256K x 9 | (2) 256K x  |
          |       |     9      |   x 9    |              |      9      |
          |-------+------------+----------+--------------+-------------|
          |  2MB  | (2) 1M x 9 |   NONE   |     NONE     |    NONE     |
          |-------+------------+----------+--------------+-------------|
          |  3MB  | (2) 256K x | (2) 256K |  (2) 1M x 9  |    NONE     |
          |       |     9      |   x 9    |              |             |
          |-------+------------+----------+--------------+-------------|
          |  4MB  | (2) 1M x 9 | (2) 1M x |     NONE     |    NONE     |
          |       |            |    9     |              |             |
          |-------+------------+----------+--------------+-------------|
          | 4.5MB | (2) 1M x 9 | (2) 1M x | (2) 256K x 9 |    NONE     |
          |       |            |    9     |              |             |
          |-------+------------+----------+--------------+-------------|
          |  5MB  | (2) 1M x 9 | (2) 1M x | (2) 256K x 9 | (2) 256K x  |
          |       |            |    9     |              |      9      |
          |-------+------------+----------+--------------+-------------|
          |  6MB  | (2) 1M x 9 | (2) 1M x |  (2) 1M x 9  |    NONE     |
          |       |            |    9     |              |             |
          |-------+------------+----------+--------------+-------------|
          |  8MB  | (2) 1M x 9 | (2) 1M x |  (2) 1M x 9  | (2) 1M x 9  |
          |       |            |    9     |              |             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PIPELINE MODE CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Mode   | CPU Speed |    JP5     |    JP6     |    JP7    |
          |----------+-----------+------------+------------+-----------|
          | Enabled  |   20 or   | pins 2 & 3 | pins 1 & 2 | pins 2 &  |
          |          |   25MHz   |   closed   |   closed   | 3 closed  |
          |----------+-----------+------------+------------+-----------|
          | Disabled |   20mhz   | pins 1 & 2 | pins 2 & 3 | pins 1 &  |
          |          |   only    |   closed   |   closed   | 2 closed  |
          +------------------------------------------------------------+