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       # UNIDENTIFIED
       
          OPTi 386-33/40WB
       
          Processor         80386DX (exact location is unknown)          
          Processor Speed   33/40MHz                                     
          Chip Set          OPTi                                         
          Max. Onboard DRAM 40MB                                         
          Cache             64KB                                         
          BIOS              AMI                                          
          Dimensions        330mm x 218mm                                
          I/O Options       32-bit external memory card slot             
          NPU Options       80387DX/3167                                 
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | External battery  |   J10    | 32-bit external  |    S1    |
          |                   |          | memory card slot |          |
          |-------------------+----------+------------------+----------|
          | Power LED &       |   J23    | Reset switch     |   SW1    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |   J24    | Turbo switch     |   SW2    |
          |-------------------+----------+------------------+----------|
          | Turbo LED         |   JP4    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 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    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     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      |           |          |
          |--------+--------------+-------------+-----------+----------|
          |  4MB   |  (4) 1M x 9  |    NONE     |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  5MB   | (4) 256K x 9 | (4) 1M x 9  |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  8MB   |  (4) 1M x 9  | (4) 1M x 9  |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  12MB  |  (4) 1M x 9  | (4) 1M x 9  | (4) 1M x  |   NONE   |
          |        |              |             |     9     |          |
          |--------+--------------+-------------+-----------+----------|
          |  16MB  |  (4) 1M x 9  | (4) 1M x 9  | (4) 1M x  | (4) 1M x |
          |        |              |             |     9     |    9     |
          |--------+--------------+-------------+-----------+----------|
          |  20MB  |  (4) 1M x 9  | (4) 4M x 9  |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  20MB  |  (4) 4M x 9  | (4) 1M x 9  |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  24MB  |  (4) 1M x 9  | (4) 4M x 9  | (4) 1M x  |   NONE   |
          |        |              |             |     9     |          |
          |--------+--------------+-------------+-----------+----------|
          |  24MB  |  (4) 4M x 9  | (4) 1M x 9  | (4) 1M x  |   NONE   |
          |        |              |             |     9     |          |
          |--------+--------------+-------------+-----------+----------|
          |  28MB  |  (4) 1M x 9  | (4) 4M x 9  | (4) 1M x  | (4) 1M x |
          |        |              |             |     9     |    9     |
          |--------+--------------+-------------+-----------+----------|
          |  28MB  |  (4) 4M x 9  | (4) 1M x 9  | (4) 1M x  | (4) 1M x |
          |        |              |             |     9     |    9     |
          |--------+--------------+-------------+-----------+----------|
          |  32MB  |  (4) 4M x 9  | (4) 4M x 9  |   NONE    |   NONE   |
          |--------+--------------+-------------+-----------+----------|
          |  36MB  |  (4) 4M x 9  | (4) 4M x 9  | (4) 1M x  |   NONE   |
          |        |              |             |     9     |          |
          |--------+--------------+-------------+-----------+----------|
          |  40MB  |  (4) 4M x 9  | (4) 4M x 9  | (4) 1M x  | (4) 1M x |
          |        |              |             |     9     |    9     |
          |------------------------------------------------------------|
          | Note:The locations of Bank 2 & Bank 3 can be found on the  |
          | external memory card.                                      |
          +------------------------------------------------------------+
       
   IMG IMG 2
          
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size  |    Max.     |   Bank 0   |   Bank 1   |    TAG     |
          |       |  Cacheable  |            |            |            |
          |-------+-------------+------------+------------+------------|
          | 32KB  |     8MB     | (4) 8K x 8 | (4) 8K x 8 | (4) 4K x 4 |
          |-------+-------------+------------+------------+------------|
          | 64KB  |    16MB     | (4) 8K x 8 | (4) 8K x 8 | (4) 4K x 4 |
          |-------+-------------+------------+------------+------------|
          | 128KB |    32MB     | (4) 32K x  | (4) 32K x  | (4) 16K x  |
          |       |             |     8      |     8      |     8      |
          |-------+-------------+------------+------------+------------|
          | 256KB |    64MB     | (4) 32K x  | (4) 32K x  | (4) 16K x  |
          |       |             |     8      |     8      |     8      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  |  JP5   |  JP6   |  JP7   |  JP8   |  JP9   | JP10  |
          |-------+--------+--------+--------+--------+--------+-------|
          | 32KB  | pins 1 | pins 1 | pins 1 |  Open  | pins 2 | pins  |
          |       |  & 2   |  & 2   |  & 2   |        |  & 3   | 2 & 3 |
          |-------+--------+--------+--------+--------+--------+-------|
          | 64KB  | pins 2 | pins 1 | pins 1 |  Open  | pins 2 | pins  |
          |       |  & 3   |  & 2   |  & 2   |        |  & 3   | 1 & 2 |
          |-------+--------+--------+--------+--------+--------+-------|
          | 128KB | pins 2 | pins 1 | pins 2 | Closed | pins 2 | pins  |
          |       |  & 3   |  & 2   |  & 3   |        |  & 3   | 1 & 2 |
          |-------+--------+--------+--------+--------+--------+-------|
          | 256KB | pins 2 | pins 2 | pins 2 | Closed | pins 1 | pins  |
          |       |  & 3   |  & 3   |  & 3   |        |  & 2   | 1 & 2 |
          |------------------------------------------------------------|
          | Note:Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                       AT CLK SELECT                        |
          |------------------------------------------------------------|
          |           AT Clock            |            JP3             |
          |-------------------------------+----------------------------|
          |           CLK2IN/6            |            Open            |
          |-------------------------------+----------------------------|
          |           CLK2IN/8            |           Closed           |
          +------------------------------------------------------------+