INFORMTECH INTERNATIONAL, INC.
==============================

   IT386

   Processor    80386SX                                           
   Processor    25/33MHz                                          
   Speed        
   Chip Set     TI                                                
   Max. Onboard 16MB (12MB on external memory card)               
   DRAM         
   Cache        32KB                                              
   BIOS         Phoenix                                           
   Dimensions   318mm x 220mm                                     
   I/O Options  Auxiliary keyboard connector, external memory     
                card (IT-FEM386)                                  
   NPU Options  80387SX/3167                                      

<gopher://bitreich.org/I/th99/m/I-L/32897-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose      | Location | Purpose               | Location |
   |--------------+----------+-----------------------+----------|
   | Turbo switch |    J8    | Power LED & keylock   |    P5    |
   |--------------+----------+-----------------------+----------|
   | Turbo LED    |    P2    | Auxiliary keyboard    |   P20    |
   |              |          | connector             |          |
   |--------------+----------+-----------------------+----------|
   | Speaker      |    P3    | External battery      |   P22    |
   |--------------+----------+-----------------------+----------|
   | Reset switch |    P4    | External memory card  |   SL1    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |           Function            | Jumper/Switch |  Position  |
   |-------------------------------+---------------+------------|
   |>> | Turbo enabled             |      J8       |    Open    |
   |---+---------------------------+---------------+------------|
   |   | Turbo disabled            |      J8       |   Closed   |
   |---+---------------------------+---------------+------------|
   |>> | AT bus clock speed select |      J14      | pins 2 & 3 |
   |   | 8MHz                      |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | AT bus clock speed select |      J14      | pins 1 & 2 |
   |   | 12MHz                     |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | Power good signal detect  |      J18      | pins 1 & 2 |
   |   | from power supply         |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | Power good signal detect  |      J18      | pins 2 & 3 |
   |   | from board                |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | External memory card not  |      J25      | pins 1 & 2 |
   |   | installed                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |   | External memory card      |      J25      | pins 2 & 3 |
   |   | installed                 |               |   closed   |
   |---+---------------------------+---------------+------------|
   |>> | 80387 disabled (Weitek    |     SW1/1     |    Off     |
   |   | 3167 is auto detected)    |               |            |
   |---+---------------------------+---------------+------------|
   |   | 80387 enabled (Weitek     |     SW1/1     |     On     |
   |   | 3167 is auto detected)    |               |            |
   |---+---------------------------+---------------+------------|
   |>> | Monitor type select       |     SW1/2     |    Off     |
   |   | monochrome                |               |            |
   |---+---------------------------+---------------+------------|
   |   | Monitor type select       |     SW1/2     |     On     |
   |   | color/EGA/VGA             |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |            Bank 0             |
   |----------------------------+-------------------------------|
   |            1MB             |         (4) 256K x 9          |
   |----------------------------+-------------------------------|
   |            4MB             |          (4) 1M x 9           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM JUMPER CONFIGURATION                  |
   |------------------------------------------------------------|
   | Size |       J1        |       J12       |       J13       |
   |------+-----------------+-----------------+-----------------|
   | 1MB  |   pins 1 & 2    |   pins 2 & 3    |   pins 2 & 3    |
   |      |     closed      |     closed      |     closed      |
   |------+-----------------+-----------------+-----------------|
   | 4MB  |   pins 2 & 3    |   pins 1 & 2    |   pins 1 & 2    |
   |      |     closed      |     closed      |     closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 32KB cache is factory installed and is not           |
   | configurable. The location is unidentified.                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  DRAM SPEED CONFIGURATION                  |
   |------------------------------------------------------------|
   |     CPU speed      |     DRAM speed     |        J7        |
   |--------------------+--------------------+------------------|
   |       25MHz        |       120ns        |      Closed      |
   |--------------------+--------------------+------------------|
   |       25MHz        |       100ns        |       Open       |
   |--------------------+--------------------+------------------|
   |       33MHz        |       100ns        |      Closed      |
   |--------------------+--------------------+------------------|
   |       33MHz        |        80ns        |       Open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   | CPU speed | NPU speed |  J4   |     J5     |  J6   |  J9   |
   |-----------+-----------+-------+------------+-------+-------|
   |   25MHz   |   20MHz   | 2 & 3 | 1 & 3, 2 & | 2 & 3 | 2 & 3 |
   |           |           |       |     4      |       |       |
   |-----------+-----------+-------+------------+-------+-------|
   |   25MHz   |   25MHz   | 2 & 3 |   2 & 4    | 1 & 2 | 2 & 3 |
   |-----------+-----------+-------+------------+-------+-------|
   |   33MHz   |   25MHz   | 1 & 2 |   1 & 2    | 2 & 3 | 1 & 2 |
   |-----------+-----------+-------+------------+-------+-------|
   |   33MHz   |   33MHz   | 1 & 2 |    Open    | 1 & 2 | 1 & 2 |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   I/O MODE CONFIGURATION                   |
   |------------------------------------------------------------|
   | I/O bus |   I/O wait   |  I/O wait state   | SW1/3 | SW1/4 |
   |  mode   | state 8-bit  |      16-bit       |       |       |
   |---------+--------------+-------------------+-------+-------|
   |    1    |      4       |         1         |  On   |  On   |
   |---------+--------------+-------------------+-------+-------|
   |    2    |      6       |         2         |  Off  |  On   |
   |---------+--------------+-------------------+-------+-------|
   |    3    |      8       |         3         |  On   |  Off  |
   |---------+--------------+-------------------+-------+-------|
   |    4    |      10      |         4         |  Off  |  Off  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 BATTERY TYPE CONFIGURATION                 |
   |------------------------------------------------------------|
   |                  Type                  |        J19        |
   |----------------------------------------+-------------------|
   |                  4.5v                  | pins 3 & 4 closed |
   |----------------------------------------+-------------------|
   |               3.6 - 4.5v               | pins 1 & 3 closed |
   |----------------------------------------+-------------------|
   | 6v (without internal current limiting  | pins 1 & 2 closed |
   |               resistor)                |                   |
   |----------------------------------------+-------------------|
   |   6v (with internal current limiting   | pins 2 & 4 closed |
   |               resistor)                |                   |
   +------------------------------------------------------------+