(TXT) View Source
       
       # CHICONY, INC.
       
          CH-486-33/50P
       
          Processor          80486SX/80487SX/80486DX/80486DX2/P23T/P24T  
          Processor Speed    20/25/33/40/50(internal)/50/66(internal)MHz 
          Chip Set           UMC                                         
          Video Chip Set     None                                        
          Maximum Onboard    32MB                                        
          Memory             
          Maximum Video      None                                        
          Memory             
          Cache              64/128/256KB                                
          BIOS               AMI                                         
          Dimensions         254mm x 218mm                               
          I/O Options        32-bit VESA local bus slots (2)             
          NPU Options        None                                        
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose       | Location | Purpose              | Location |
          |---------------+----------+----------------------+----------|
          | Power LED &   |    J1    | Reset switch         |    J5    |
          | keylock       |          |                      |          |
          |---------------+----------+----------------------+----------|
          | Speaker       |    J2    | External battery     |    J6    |
          |---------------+----------+----------------------+----------|
          | Turbo switch  |    J3    | 32-bit VESA local    |  SL1 &   |
          |               |          | bus slots            |   SL2    |
          |---------------+----------+----------------------+----------|
          | Turbo LED     |    J4    |                      |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               |  Label  | Position  |
          |--------------------------------------+---------+-----------|
          |   | Monitor type select color        |   W1    |  Closed   |
          |---+----------------------------------+---------+-----------|
          |   | Monitor type select monochrome   |   W1    |   Open    |
          |---+----------------------------------+---------+-----------|
          |   | Battery type select internal     |   W14   |  Closed   |
          |---+----------------------------------+---------+-----------|
          |   | Battery type select external     |   W14   |   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 (U30)  | TAG (U31) |
          |-----------+-----------+-----------+------------+-----------|
          |   64KB    | (4) 8K x  | (4) 8K x  | (1) 8K x 8 |   None    |
          |           |     8     |     8     |            |           |
          |-----------+-----------+-----------+------------+-----------|
          |   128KB   | (4) 32K x |   None    | (1) 8K x 8 |   None    |
          |           |     8     |           |            |           |
          |-----------+-----------+-----------+------------+-----------|
          | 256KB (A) | (4) 32K x | (4) 32K x | (1) 32K x  |   None    |
          |           |     8     |     8     |     8      |           |
          |-----------+-----------+-----------+------------+-----------|
          | 256KB (B) | (4) 32K x | (4) 32K x | (1) 8K x 8 | (1) 8K x  |
          |           |     8     |     8     |            |     8     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |    Size    |    W6     |    W7     |    W8     |    W9     |
          |------------+-----------+-----------+-----------+-----------|
          |    64KB    |   Open    |   Open    |   Open    |   Open    |
          |------------+-----------+-----------+-----------+-----------|
          |   128KB    |   Open    |  Closed   |   Open    |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          | 256KB (A)  |  Closed   |  Closed   |  Closed   |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          | 256KB (B)  |  Closed   |  Closed   |  Closed   |  Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             CACHE JUMPER CONFIGURATION (CON’T)             |
          |------------------------------------------------------------|
          |   Size    |    W10     |    W11    |    W12    |    W13    |
          |-----------+------------+-----------+-----------+-----------|
          |   64KB    | Pins 1 & 2 | Pins 1 &  | Pins 1 &  | Pins 1 &  |
          |           |   closed   | 2 closed  | 2 closed  | 2 closed  |
          |-----------+------------+-----------+-----------+-----------|
          |   128KB   | Pins 2 & 3 | Pins 1 &  | Pins 1 &  | Pins 2 &  |
          |           |   closed   | 2 closed  | 2 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          | 256KB (A) | Pins 1 & 2 | Pins 2 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 3 closed  | 3 closed  |
          |-----------+------------+-----------+-----------+-----------|
          | 256KB (B) | Pins 1 & 2 | Pins 2 &  | Pins 2 &  | Pins 2 &  |
          |           |   closed   | 3 closed  | 3 closed  | 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |   Speed    |    W15    |    W16    |    W17    |    W18    |
          |------------+-----------+-----------+-----------+-----------|
          |   20MHz    |  Closed   |  Closed   |  Closed   |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          |   25MHz    |  Closed   |   Open    |   Open    |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          |   33MHz    |   Open    |   Open    |   Open    |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          |   40MHz    |  Closed   |   Open    |   Open    |   Open    |
          |------------+-----------+-----------+-----------+-----------|
          |   50iMHz   |  Closed   |   Open    |   Open    |  Closed   |
          |------------+-----------+-----------+-----------+-----------|
          |   50MHz    |   Open    |   Open    |   Open    |   Open    |
          |------------+-----------+-----------+-----------+-----------|
          |   66iMHz   |   Open    |   Open    |   Open    |  Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |    Type    |            W2            |         W3         |
          |------------+--------------------------+--------------------|
          |  80486SX   |    Pins 2 & 3 closed     |        Open        |
          |------------+--------------------------+--------------------|
          |  80487SX   | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed  |
          |------------+--------------------------+--------------------|
          |  80486DX   | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed  |
          |------------+--------------------------+--------------------|
          |  80486DX2  | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed  |
          |------------+--------------------------+--------------------|
          |    P23T    | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed  |
          |------------+--------------------------+--------------------|
          |    P24T    | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                VL BUS WAIT STATE SELECTION                 |
          |------------------------------------------------------------|
          |            Setting            |             W4             |
          |-------------------------------+----------------------------|
          |               0               |            Open            |
          |-------------------------------+----------------------------|
          |               1               |           Closed           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   VL BUS SPEED SELECTION                   |
          |------------------------------------------------------------|
          |             Speed             |             W5             |
          |-------------------------------+----------------------------|
          |           <= 33MHz            |            Open            |
          |-------------------------------+----------------------------|
          |            >33 MHz            |           Closed           |
          +------------------------------------------------------------+