(TXT) View Source
       
       # CHICONY, INC.
       
          CH-486
       
          Processor              80486SX/80487SX/80486DX                 
          Processor Speed        20/25/33/50MHz                          
          Chip Set               OPTI                                    
          Maximum Onboard Memory 32MB                                    
          Cache                  64/128/256KB                            
          BIOS                   AMI                                     
          Dimensions             330mm x 218mm                           
          I/O Options            None                                    
          NPU Options            None                                    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |      Function      | Label  |      Function       | Label  |
          |--------------------+--------+---------------------+--------|
          | External battery   |   J1   | Power LED & keylock |  JP18  |
          |--------------------+--------+---------------------+--------|
          | Speaker            |  J17   | Reset switch        |  sw1   |
          |--------------------+--------+---------------------+--------|
          | Turbo LED          |  JP11  | Turbo switch        |  SW2   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Setting               | Label |   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      |
          |---+--------------------------------+-------+---------------|
          | » | Jumper information unavailable |  JP5  |      N/A      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                            DRAM                            |
          |------------------------------------------------------------|
          |       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     |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 4M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                         CACHE SIZE                         |
          |------------------------------------------------------------|
          |    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                        |
          |------------------------------------------------------------|
          |  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                          |
          |------------------------------------------------------------|
          | Setting  |        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                          |
          |------------------------------------------------------------|
          |          Setting           |             JP12              |
          |----------------------------+-------------------------------|
          |           20MHz            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           25MHz            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           33MHz            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           50MHz            |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+