(TXT) View Source
       
       # CHICONY, INC.
       
          CH-486-33A
       
          Processor             80486SX/80487SX/80486DX                  
          Processor Speed       20/25/33MHz                              
          Chip Set              Chicony                                  
          Max. Onboard DRAM     32MB                                     
          Cache                 64/256KB                                 
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           None                                     
          NPU Options           4167                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | External battery    |   J10    | Turbo LED      |   JP12   |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   J23    | Reset switch   |   SW1    |
          |---------------------+----------+----------------+----------|
          | Speaker             |   J24    | Turbo switch   |   SW2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Monitor type select color        |  JP1   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP1   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | CMOS memory normal operation     |  JP2   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |  JP2   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP4   | pins 2 & 3 |
          |   | alter                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP10  |    Open    |
          |   | alter                            |        |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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) 4M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |   U33 (TAG)   |   U34 (TAG)   |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (8) 8K x 8   |  (1) 64K x 1  |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (8) 32K x 8  |  (1) 64K x 1  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |     Size     |      JP8      |     JP9      |     JP10     |
          |--------------+---------------+--------------+--------------|
          |     64KB     |     Open      |     Open     |     Open     |
          |--------------+---------------+--------------+--------------|
          |    256KB     |    Closed     |    Closed    |    Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |   Type   |        JP5        |        JP6        |   JP7   |
          |----------+-------------------+-------------------+---------|
          | 80486SX  |       Open        | pins 2 & 3 closed |  Open   |
          |----------+-------------------+-------------------+---------|
          | 80487SX  | pins 1 & 2 closed | pins 1 & 2 closed | Closed  |
          |----------+-------------------+-------------------+---------|
          | 80486DX  | pins 2 & 3 closed | pins 1 & 2 closed | Closed  |
          +------------------------------------------------------------+