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       # AMPTRON INTERNATIONAL. INC.
       
          DX-8100C
       
          Processor         80486SX/80487SX/80486DX/80486DX2             
          Processor Speed   20/25/33/50(internal)/50/66(internal)/MHz    
          Chip Set          Hint                                         
          Max. Onboard DRAM 128MB                                        
          Cache             64/128/256KB                                 
          BIOS              AMI                                          
          Dimensions        330mm x 218mm                                
          I/O Options       32-bit VESA local bus slots (2)              
          NPU Options       None                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |   JP2    | Speaker           |   JP27   |
          |------------------+----------+-------------------+----------|
          | Reset switch     |   JP24   | Turbo LED         |   JP23   |
          |------------------+----------+-------------------+----------|
          | Turbo switch     |   JP25   | 32-bit VESA Local | SL1, SL2 |
          |                  |          | bus slots         |          |
          |------------------+----------+-------------------+----------|
          | Keylock          |   JP26   |                   |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Enable on board battery          |  JP4   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Enable external battery          |  JP4   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP9   |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP15  |   Closed   |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select color        |  JP16  |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP16  |    Open    |
          |---+----------------------------------+--------+------------|
          | » | CPU speed select 50MHz           |  JP17  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU speed select 33MHz           |  JP17  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       1MB        |    (4) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       4MB        |     (4) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       5MB        |     (4) 1M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       17MB       |    (4) 256K x 9    |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       64MB       |    (4) 16M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       65MB       |    (4) 256K x 9    |    (4) 16M x 9     |
          |------------------+--------------------+--------------------|
          |       65MB       |    (4) 16M x 9     |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       68MB       |     (4) 1M x 9     |    (4) 16M x 9     |
          |------------------+--------------------+--------------------|
          |       68MB       |    (4) 16M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       80MB       |    (4) 16M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       80MB       |     (4) 4M x 9     |    (4) 16M x 9     |
          |------------------+--------------------+--------------------|
          |      128MB       |    (4) 16M x 9     |    (4) 16M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size   |    JP5     |    JP6     |    JP7     |    JP8    |
          |---------+------------+------------+------------+-----------|
          |  64KB   |    Open    |    Open    |    Open    |   Open    |
          |---------+------------+------------+------------+-----------|
          |  128KB  |   Closed   |    Open    |    Open    |  Closed   |
          |---------+------------+------------+------------+-----------|
          |  256KB  |   Closed   |   Closed   |   Closed   |  Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CACHE JUMPER CONFIGURATION (CON'T)             |
          |------------------------------------------------------------|
          | Size  |      JP12       |      JP13       |      JP14      |
          |-------+-----------------+-----------------+----------------|
          | 64KB  |   pins 1 & 2    |   pins 1 & 2    |   pins 1 & 2   |
          |       |     closed      |     closed      |     closed     |
          |-------+-----------------+-----------------+----------------|
          | 128KB |   pins 2 & 3    |   pins 2 & 3    |   pins 1 & 2   |
          |       |     closed      |     closed      |     closed     |
          |-------+-----------------+-----------------+----------------|
          | 256KB |   pins 2 & 3    |   pins 2 & 3    |   pins 2 & 3   |
          |       |     closed      |     closed      |     closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          | CPU Type  |       JP20        |       JP21        |  JP22  |
          |-----------+-------------------+-------------------+--------|
          |  80486SX  |       Open        | pins 2 & 3 closed |  Open  |
          |-----------+-------------------+-------------------+--------|
          |  80487SX  | pins 2 & 3 closed | pins 1 & 2 closed | Closed |
          |-----------+-------------------+-------------------+--------|
          |  80486DX  | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
          |-----------+-------------------+-------------------+--------|
          | 80486DX2  | pins 1 & 2 closed | pins 1 & 2 closed | Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          VESA WAIT STATE/BUS SPEED CONFIGURATION           |
          |------------------------------------------------------------|
          |   CPU speed   |  Wait states  |     JP10     |    JP11     |
          |---------------+---------------+--------------+-------------|
          |    < 33MHz    | 0 wait states |     Open     |    Open     |
          |---------------+---------------+--------------+-------------|
          |    > 33MHz    | 1 wait state  |    Closed    |   Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CLOCK CHIP CONFIGURATION                  |
          |------------------------------------------------------------|
          |      Speed       |        JP18        |        JP19        |
          |------------------+--------------------+--------------------|
          |      33MHz       | pins 1 & 2 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      50MHz       | pins 3 & 4 closed  | pins 1 & 2 closed  |
          +------------------------------------------------------------+