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       # TEKNOR INDUSTRIAL COMPUTERS, INC.
       
          VIPER 820
       
          Processor        Pentium                                       
          Processor Speed  75/100/120/133/150/166/200/MHz                
          Chip Set         Intel                                         
          Video Chip Set   Cirrus Logic                                  
          Maximum Onboard  256MB                                         
          Memory           
          Maximum Video    1MB                                           
          Memory           
          Cache            256KB                                         
          BIOS             Award                                         
          Dimensions       181mm x 122mm                                 
          I/O Options      Floppy drive interface, IDE interface, SCSI   
                           interface, green PC connector, parallel port, 
                           PS/2 mouse interface, serial ports (2), VGA   
                           port, VGA feature connector, flat panel       
                           connector, PC/104 connectors (2)              
          NPU Options      None                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | IDE interface    |    J1    | Flat panel        |    J9    |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Floppy drive     |    J2    | Serial port 1     |   J10    |
          | interface        |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Keyboard,        |    J3    | PS/2 mouse        |   J11    |
          | speaker, reset,  |          | interface         |          |
          | LED              |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Serial port 2    |    J4    | Power connector   |   J12    |
          |------------------+----------+-------------------+----------|
          | SCSI interface   |    J5    | VGA port          |   J13    |
          |------------------+----------+-------------------+----------|
          | Green PC         |    J6    | Parallel port     |   J19    |
          | connector        |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Chassis fan      |    J7    | PC/104 connectors | P1 & P2  |
          | power            |          |                   |          |
          |------------------+----------+-------------------+----------|
          | VGA feature      |    J8    | Regulator         |    P3    |
          | connector        |          | connector         |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function                | Label |  Position  |
          |---------------------------------------+-------+------------|
          | » | Power fail monitoring disabled    |  W8   |    Open    |
          |---+-----------------------------------+-------+------------|
          |   | Power fail monitoring enabled     |  W8   |   Closed   |
          |---+-----------------------------------+-------+------------|
          | » | Power failure detection source    |  W9   | Pins 1 & 2 |
          |   | external power fail (pin 6 on     |       |   closed   |
          |   | J12)                              |       |            |
          |---+-----------------------------------+-------+------------|
          |   | Power failure detection source    |  W9   | Pins 2 & 3 |
          |   | internal/external battery <3v     |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Battery type select internal      |  W10  | Pins 1 & 2 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Battery type select external      |  W10  | Pins 2 & 3 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          | » | Flat panel voltage select 5v      |  W11  | Pins 1 & 2 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          |   | Flat panel voltage select 3.3v    |  W11  | Pins 2 & 3 |
          |   |                                   |       |   closed   |
          |---+-----------------------------------+-------+------------|
          | » | BIOS boot select normal boot      |  W18  |    Open    |
          |---+-----------------------------------+-------+------------|
          |   | BIOS boot select emergency boot   |  W18  |   Closed   |
          |---+-----------------------------------+-------+------------|
          | » | Watchdog timer enabled            |  W19  |   Closed   |
          |---+-----------------------------------+-------+------------|
          |   | Watchdog timer disabled           |  W19  |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |            Bank 0             |
          |----------------------------+-------------------------------|
          |            2MB             |         (2) 256K x 36         |
          |----------------------------+-------------------------------|
          |            4MB             |         (2) 512K x 36         |
          |----------------------------+-------------------------------|
          |            8MB             |          (2) 1M x 36          |
          |----------------------------+-------------------------------|
          |            16MB            |          (2) 2M x 36          |
          |----------------------------+-------------------------------|
          |            32MB            |          (2) 4M x 36          |
          |----------------------------+-------------------------------|
          |            64MB            |          (2) 8M x 36          |
          |----------------------------+-------------------------------|
          |           128MB            |         (2) 16M x 36          |
          |----------------------------+-------------------------------|
          |           256MB            |         (2) 32M x 36          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          | Note: 256KB cache is factory installed and is not          |
          | configurable.                                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          | Note: 1MB video memory is factory installed and is not     |
          | configurable.                                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |  CPU  |Clock |Multiplier|  W2  |  W3  | W13  | W14  | W15  |
          | speed |speed |          |      |      |      |      |      |
          |-------+------+----------+------+------+------+------+------|
          | 75MHz |50MHz |   1.5x   |Closed|Closed| Open | Open | Open |
          |-------+------+----------+------+------+------+------+------|
          |100MHz |66MHz |   1.5x   | Open |Closed|Closed| Open | Open |
          |-------+------+----------+------+------+------+------+------|
          |120MHz |60MHz |    2x    |Closed| Open | Open |Closed| Open |
          |-------+------+----------+------+------+------+------+------|
          |133MHz |66MHz |    2x    | Open |Closed|Closed|Closed| Open |
          |-------+------+----------+------+------+------+------+------|
          |150MHz |60MHz |   2.5x   |Closed| Open | Open |Closed|Closed|
          |-------+------+----------+------+------+------+------+------|
          |166MHz |66MHz |   2.5x   | Open |Closed|Closed|Closed|Closed|
          |-------+------+----------+------+------+------+------+------|
          |200MHz |66MHz |    3x    | Open |Closed|Closed| Open |Closed|
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            SERIAL PORT 2 TERMINATION SELECTION             |
          |------------------------------------------------------------|
          |         Setting         |       W6        |       W7       |
          |-------------------------+-----------------+----------------|
          | »   |     Disabled      |      Open       |      Open      |
          |-----+-------------------+-----------------+----------------|
          |     |      Enabled      |     Closed      |     Closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     BASE I/O SELECTION                     |
          |------------------------------------------------------------|
          |          Address           |              W16              |
          |----------------------------+-------------------------------|
          | » |          190H          |   Pins 1 & 2, 3 & 4 closed    |
          |---+------------------------+-------------------------------|
          |   |          290H          |       Pins 1 & 2 closed       |
          |---+------------------------+-------------------------------|
          |   |          390H          |       Pins 3 & 4 closed       |
          |---+------------------------+-------------------------------|
          |   |          390H          |             Open              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                EXTENDED BIOS MODE SELECTION                |
          |------------------------------------------------------------|
          |            Setting            |            W17             |
          |-------------------------------+----------------------------|
          |   |           VT100           |     Pins 3 & 4 closed      |
          |---+---------------------------+----------------------------|
          |   |      Serial download      |     Pins 1 & 2 closed      |
          |---+---------------------------+----------------------------|
          | » |       Standard mode       |     Pins 3 & 4 closed      |
          |---+---------------------------+----------------------------|
          | » |        Normal mode        |     Pins 1 & 2 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   TERMINATION SELECTION                    |
          |------------------------------------------------------------|
          |             Setting              |           W1            |
          |----------------------------------+-------------------------|
          | » |    Hardware configuration    |    Pins 2 & 3 closed    |
          |---+------------------------------+-------------------------|
          |   |    Software configuration    |    Pins 1 & 2 closed    |
          |---+------------------------------+-------------------------|
          |   |           Disabled           |          Open           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FEATURE CONNECTOR SELECTION                 |
          |------------------------------------------------------------|
          |        Setting         |       W4        |       W5        |
          |------------------------+-----------------+-----------------|
          | » |      Disabled      |     Closed      |      Open       |
          |---+--------------------+-----------------+-----------------|
          |   |      Enabled       |      Open       |     Closed      |
          |---+--------------------+-----------------+-----------------|
          |   |       V-port       |      Open       |      Open       |
          +------------------------------------------------------------+