(TXT) View Source
       
       # CHICONY, INC.
       
          CH-486-33/50 L
       
          Processor             80486SX/80487SX/80486DX                  
          Processor Speed       20/25/33/50MHz                           
          Chip Set              OPTI                                     
          Max. Onboard DRAM     32MB                                     
          Cache                 64/128/256KB                             
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           None                                     
          NPU Options           None                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | External battery    |    J1    | Turbo LED      |   JP11   |
          |---------------------+----------+----------------+----------|
          | Speaker             |   J17    | Reset switch   |   SW1    |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   J18    | Turbo switch   |   SW2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | CMOS memory normal operation   |  JP1   |  pins 2 & 3  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          |   | CMOS memory clear              |  JP1   |  pins 1 & 2  |
          |   |                                |        |    closed    |
          |---+--------------------------------+--------+--------------|
          | » | Monitor type select color      |  JP2   |    Closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select monochrome |  JP2   |     Open     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M 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) 32K x 8  |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size   |        JP3        |   JP4    |   JP6   |   JP7   |
          |---------+-------------------+----------+---------+---------|
          |  64KB   | pins 2 & 3 closed |   Open   |  Open   |  Open   |
          |---------+-------------------+----------+---------+---------|
          |  128KB  | pins 1 & 2 closed |  Closed  | Closed  |  Open   |
          |---------+-------------------+----------+---------+---------|
          |  256KB  | pins 2 & 3 closed |  Closed  | Closed  | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type   |        JP8        |   JP9   |       JP10        |
          |----------+-------------------+---------+-------------------|
          | 80486SX  | pins 1 & 2 closed | Closed  | pins 1 & 2 closed |
          |----------+-------------------+---------+-------------------|
          | 80487SX  | pins 2 & 3 closed |  Open   |       Open        |
          |----------+-------------------+---------+-------------------|
          | 80486DX  | pins 1 & 2 closed | Closed  | pins 2 & 3 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |            Type            |             JP12              |
          |----------------------------+-------------------------------|
          |           20MHz            |       pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           25MHz            |       pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           33MHz            |       pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           50MHz            |       pins 1 & 2 closed       |
          +------------------------------------------------------------+