(TXT) View Source
       
       # CHICONY, INC.
       
          CH-48633C
       
          Processor             80486SX/80487SX/80486DX                  
          Processor Speed       20/25/33MHz                              
          Chip Set              OPTI                                     
          Max. Onboard DRAM     32MB                                     
          Cache                 64/128/256KB                             
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           None                                     
          NPU Options           4167                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J3    | External battery |   J11    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |    J4    | Turbo LED        |   JP1    |
          |-------------------+----------+------------------+----------|
          | Turbo switch      |    J5    | Reset switch     |    S6    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Monitor type select color        |  JP1   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP1   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP9   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | CPU speed select iOSC/2          |  JP10  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU speed select iOSC/1          |  JP10  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       4MB        |     (4) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       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  | Bank 1  |     TAG      |  TAG   |  TAG   |
          |       |         |         |  (U34,U36)   | (U40)  | (U41)  |
          |-------+---------+---------+--------------+--------+--------|
          | 64KB  | (4) 8K  | (4) 8K  | (2) 64K x 1  | (1) 8K |  NONE  |
          |       |   x 8   |   x 8   |              |  x 8   |        |
          |-------+---------+---------+--------------+--------+--------|
          | 128KB | (4) 32K |  NONE   | (2) 64K x 1  | (1) 8K |  NONE  |
          |       |   x 8   |         |              |  x 8   |        |
          |-------+---------+---------+--------------+--------+--------|
          | 256KB | (4) 32K | (4) 32K | (2) 64K x 1  | (1) 8K | (1) 8K |
          |       |   x 8   |   x 8   |              |  x 8   |  x 8   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size   |   JP2    |   JP4    |  JP5   |   JP7   |   JP8   |
          |---------+----------+----------+--------+---------+---------|
          |  64KB   |   Open   |   Open   | 2 & 3  |  Open   |  Open   |
          |---------+----------+----------+--------+---------+---------|
          |  128KB  |  Closed  |   Open   | 1 & 2  |  Open   | Closed  |
          |---------+----------+----------+--------+---------+---------|
          |  256KB  |  Closed  |  Closed  | 2 & 3  | Closed  | Closed  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |  Type   |    JP11    |          JP12          |    JP13    |
          |---------+------------+------------------------+------------|
          | 80486SX | pins 2 & 3 |   pins 2 & 3 closed    | pins 1 & 2 |
          |         |   closed   |                        |   closed   |
          |---------+------------+------------------------+------------|
          | 80487SX | pins 2 & 3 |  pins 1 & 2 and 3 & 4  | pins 1 & 2 |
          |         |   closed   |         closed         |   closed   |
          |---------+------------+------------------------+------------|
          | 80486DX | pins 1 & 2 |  pins 1 & 2 and 3 & 4  | pins 2 & 3 |
          |         |   closed   |         closed         |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |        Type        |        JP14        |       JP15       |
          |--------------------+--------------------+------------------|
          |       25MHz        |        Open        |       Open       |
          |--------------------+--------------------+------------------|
          |       33MHz        |       Closed       |       Open       |
          +------------------------------------------------------------+