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       # WINCAL TECHNOLOGY CORPORATION
       
          OPTI-25
       
          Processor             80386DX                                  
          Processor Speed       25MHz                                    
          Chip Set              OPTI                                     
          Max. Onboard DRAM     8MB                                      
          Cache                 None                                     
          BIOS                  AMI                                      
          Dimensions            330mm x 218mm                            
          I/O Options           32-bit external memory card slot         
          NPU Options           80387/3167                               
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   CR4    | 32-bit external  |    S1    |
          |                   |          | memory card      |          |
          |-------------------+----------+------------------+----------|
          | External battery  |   J10    | Reset switch     |   SW1    |
          |-------------------+----------+------------------+----------|
          | Speaker           |   J22    | Turbo switch     |   SW2    |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J23    |                  |          |
          | keylock           |          |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              |  Jumper  |  Position   |
          |-----------------------------------+----------+-------------|
          | »  | Monitor type select color    |   JP1    | pins 1 & 2  |
          |    |                              |          |   closed    |
          |----+------------------------------+----------+-------------|
          |    | Monitor type select          |   JP1    | pins 2 & 3  |
          |    | monochrome                   |          |   closed    |
          |----+------------------------------+----------+-------------|
          | »  | CMOS normal operation        |   JP5    |   Closed    |
          |----+------------------------------+----------+-------------|
          |    | CMOS memory clear            |   JP5    |    Open     |
          |------------------------------------------------------------|
          | Note:JP5 should be left open for approximately 10 minutes  |
          | when clearing CMOS memory.                                 |
          |                                                            |
          | JP5 only appears on version 2.5 board.                     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |     Bank 0      |   Bank 1   |  Bank 2  |  Bank 3  |
          |-------+-----------------+------------+----------+----------|
          |  1MB  |  (4) 256K x 9   |    NONE    |   NONE   |   NONE   |
          |-------+-----------------+------------+----------+----------|
          |  2MB  |  (4) 256K x 9   | (4) 256K x |   NONE   |   NONE   |
          |       |                 |     9      |          |          |
          |-------+-----------------+------------+----------+----------|
          |  3MB  |  (4) 256K x 9   | (4) 256K x | (4) 256K |   NONE   |
          |       |                 |     9      |   x 9    |          |
          |-------+-----------------+------------+----------+----------|
          |  4MB  |  (4) 256K x 9   | (4) 256K x | (4) 256K | (4) 256K |
          |       |                 |     9      |   x 9    |   x 9    |
          |-------+-----------------+------------+----------+----------|
          |  4MB  |   (4) 1M x 9    |    NONE    |   NONE   |   NONE   |
          |-------+-----------------+------------+----------+----------|
          |  5MB  |   (4) 1M x 9    | (4) 256K x |   NONE   |   NONE   |
          |       |                 |     9      |          |          |
          |-------+-----------------+------------+----------+----------|
          |  6MB  |   (4) 1M x 9    | (4) 256K x | (4) 256K |   NONE   |
          |       |                 |     9      |   x 9    |          |
          |-------+-----------------+------------+----------+----------|
          |  7MB  |   (4) 1M x 9    | (4) 256K x | (4) 256K | (4) 256K |
          |       |                 |     9      |   x 9    |   x 9    |
          |-------+-----------------+------------+----------+----------|
          |  8MB  |   (4) 1M x 9    | (4) 1M x 9 |   NONE   |   NONE   |
          |-------+-----------------+------------+----------+----------|
          |  9MB  |   (4) 1M x 9    | (4) 1M x 9 | (4) 256K |   NONE   |
          |       |                 |            |   x 9    |          |
          |-------+-----------------+------------+----------+----------|
          | 10MB  |   (4) 1M x 9    | (4) 1M x 9 | (4) 256K | (4) 256K |
          |       |                 |            |   x 9    |   x 9    |
          |-------+-----------------+------------+----------+----------|
          | 12MB  |   (4) 1M x 9    | (4) 1M x 9 | (4) 1M x |   NONE   |
          |       |                 |            |    9     |          |
          |-------+-----------------+------------+----------+----------|
          | 13MB  |   (4) 1M x 9    | (4) 1M x 9 | (4) 1M x | (4) 256K |
          |       |                 |            |    9     |   x 9    |
          |-------+-----------------+------------+----------+----------|
          | 16MB  |   (4) 1M x 9    | (4) 1M x 9 | (4) 1M x | (4) 1M x |
          |       |                 |            |    9     |    9     |
          |-------+-----------------+------------+----------+----------|
          | 16MB  |   (4) 4M x 9    |    NONE    |   NONE   |   NONE   |
          |------------------------------------------------------------|
          | Note:Banks 2 & 3 are utilized when a 32-bit external       |
          | memory card is installed at S1.                            |
          +------------------------------------------------------------+