(TXT) View Source
       
       # INFORMTECH INTERNATIONAL, INC.
       
          IT386SK VER. 1.0
       
          Processor         80386DX                                      
          Processor Speed   25/33/40MHz                                  
          Chip Set          C & T                                        
          Max. onboard DRAM 32MB                                         
          Cache             32/64/128/256KB                              
          BIOS              Unidentified                                 
          Dimensions        330mm x 218mm                                
          I/O Options       None                                         
          NPU Options       80387DX                                      
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location | Purpose        | Location |
          |---------------------+----------+----------------+----------|
          | Turbo LED           |   JP4    | Speaker        |   J24    |
          |---------------------+----------+----------------+----------|
          | External battery    |   J10    | Reset switch   |   SW1    |
          |---------------------+----------+----------------+----------|
          | Power LED & keylock |   J23    | Turbo switch   |   SW2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Jumper |   Position   |
          |------------------------------------+--------+--------------|
          | » | Monitor type select monochrome |  JP1   |    Closed    |
          |---+--------------------------------+--------+--------------|
          |   | Monitor type select color      |  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       |
          |------------------+--------------------+--------------------|
          |       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    |   TAG    |   TAG   |
          |       |          |         |  (U32)   |  (U33)   |  (U2)   |
          |-------+----------+---------+----------+----------+---------|
          | 32KB  | (4) 8K x |  NONE   | (1) 2K x | (1) 2K x | (1) 2K  |
          |       |    8     |         |    4     |    4     |   x 4   |
          |-------+----------+---------+----------+----------+---------|
          | 64KB  | (4) 8K x | (4) 8K  | (1) 4K x | (1) 4K x | (1) 4K  |
          |       |    8     |   x 8   |    4     |    4     |   x 4   |
          |-------+----------+---------+----------+----------+---------|
          | 128KB | (4) 32K  |  NONE   | (1) 8K x | (1) 8K x | (1) 8K  |
          |       |   x 8    |         |    4     |    4     |   x 4   |
          |-------+----------+---------+----------+----------+---------|
          | 256KB | (4) 32K  | (4) 32K | (1) 16K  | (1) 16K  | (1) 16K |
          |       |   x 8    |   x 8   |   x 4    |   x 4    |   x 4   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size  |  JP5   |  JP6   |  JP7   |  JP8   |  JP9  | JP10  |
          |--------+--------+--------+--------+--------+-------+-------|
          |  32KB  | 1 & 2  | 1 & 2  | 1 & 2  |  Open  | 2 & 3 | 2 & 3 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  64KB  | 2 & 3  | 1 & 2  | 1 & 2  |  Open  | 2 & 3 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 128KB  | 2 & 3  | 1 & 2  | 2 & 3  | Closed | 2 & 3 | 1 & 2 |
          |--------+--------+--------+--------+--------+-------+-------|
          | 256KB  | 2 & 3  | 2 & 3  | 2 & 3  | Closed | 1 & 2 | 1 & 2 |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   AT BUS SPEED SELECTION                   |
          |------------------------------------------------------------|
          |     CPU speed      |    AT bus clock    |       JP3        |
          |--------------------+--------------------+------------------|
          |       25MHz        |      8.33MHz       |       Open       |
          |--------------------+--------------------+------------------|
          |       33MHz        |      8.33MHz       |      Closed      |
          |--------------------+--------------------+------------------|
          |       40MHz        |       10MHz        |      Closed      |
          +------------------------------------------------------------+