EVEREX SYSTEMS, INC.
====================

   AGI 4000B EV-18126

   Processor    80486DX                                           
   Processor    25/33MHz                                          
   Speed        
   Chip Set     C & T                                             
   Max. Onboard 8MB                                               
   DRAM         
   Cache        64/256KB                                          
   BIOS         AMI                                               
   Dimensions   355mm x 304mm                                     
   I/O Options  32-bit external memory card, parallel port,       
                serial ports (2)                                  
   NPU Options  4167                                              

<gopher://bitreich.org/I/th99/m/E-H/31571-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | Front panel         |    J4    | Serial Port 2  |    J9    |
   | connector           |          |                |          |
   |---------------------+----------+----------------+----------|
   | Speaker             |    J5    | Serial Port 1  |   J10    |
   |---------------------+----------+----------------+----------|
   | Parallel Port       |    J8    | 32-bit memory  |    S1    |
   |                     |          | card           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |   W1   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   W4   |  Unknown   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |   W5   |  Unknown   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | CPU speed select High            |   W6   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select slow            |   W6   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CPU speed select switchable via  |   W6   | pins 2 & 3 |
   |   | the keyboard                     |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |   W7   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |   W7   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Speaker select enabled           |  W20   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Speaker select disabled          |  W20   |    Open    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |   W8   |   W9   |
   |------+--------+--------+--------+--------+--------+--------|
   | 1MB  |  (4)   |  NONE  |  NONE  |  NONE  | pins 2 | pins 2 |
   |      | 256K x |        |        |        |  & 3   |  & 3   |
   |      |   9    |        |        |        |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 2MB  |  (4)   |  (4)   |  NONE  |  NONE  | pins 2 | pins 2 |
   |      | 256K x | 256K x |        |        |  & 3   |  & 3   |
   |      |   9    |   9    |        |        |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 4MB  | (4) 1M |  NONE  |  NONE  |  NONE  | pins 1 | pins 1 |
   |      |  x 9   |        |        |        |  & 2   |  & 2   |
   |------+--------+--------+--------+--------+--------+--------|
   | 6MB  |  (4)   |  (4)   | (4) 1M |  NONE  | pins 2 | pins 2 |
   |      | 256K x | 256K x |  x 9   |        |  & 3   |  & 3   |
   |      |   9    |   9    |        |        |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 8MB  | (4) 1M | (4) 1M |  NONE  |  NONE  | pins 1 | pins 1 |
   |      |  x 9   |  x 9   |        |        |  & 2   |  & 2   |
   |------+--------+--------+--------+--------+--------+--------|
   | 10MB | (4) 1M | (4) 1M |  (4)   |  (4)   | pins 1 | pins 1 |
   |      |  x 9   |  x 9   | 256K x | 256K x |  & 2   |  & 2   |
   |      |        |        |   9    |   9    |        |        |
   |------+--------+--------+--------+--------+--------+--------|
   | 12MB | (4) 1M | (4) 1M | (4) 1M |  NONE  | pins 1 | pins 1 |
   |      |  x 9   |  x 9   |  x 9   |        |  & 2   |  & 2   |
   |------+--------+--------+--------+--------+--------+--------|
   | 16MB | (4) 1M | (4) 1M | (4) 1M | (4) 1M | pins 1 | pins 1 |
   |      |  x 9   |  x 9   |  x 9   |  x 9   |  & 2   |  & 2   |
   |------------------------------------------------------------|
   | Note:10, 12 and 16MB configurations require the            |
   | installation of the EV-1896 memory card.                   |
   |                                                            |
   | Pins designated should be in the closed position.          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   | Size | SW1/switch 1 | SW1/switch | SW1/switch | SW1/switch |
   |      |              |     2      |     3      |     4      |
   |------+--------------+------------+------------+------------|
   | 1MB  |      On      |    Off     |     On     |     On     |
   |------+--------------+------------+------------+------------|
   | 2MB  |     Off      |    Off     |     On     |    Off     |
   |------+--------------+------------+------------+------------|
   | 4MB  |      On      |     On     |     On     |     On     |
   |------+--------------+------------+------------+------------|
   | 8MB  |     Off      |     On     |     On     |    Off     |
   |------+--------------+------------+------------+------------|
   | 10MB |     Off      |    Off     |    Off     |    Off     |
   |------+--------------+------------+------------+------------|
   | 12MB |     Off      |     On     |    Off     |     On     |
   |------+--------------+------------+------------+------------|
   | 16MB |     Off      |     On     |    Off     |    Off     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Cache        |        TAG         |
   |------------------+--------------------+--------------------|
   |       64KB       |    (10) 16K x 4    |    (1) 16K x 1     |
   |------------------+--------------------+--------------------|
   |      256KB       |    (10) 64K x 4    |    (1) 64K x 1     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |         W2         |         W3         |
   |------------------+--------------------+--------------------|
   |       64KB       | pins 1 & 2 closed  | pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      256KB       | pins 2 & 3 closed  | pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   I/O CONFIGURATION SW2                    |
   |------------------------------------------------------------|
   | Port 1 | Port 2 |  LPT   |switch 1|switch 2|switch |switch |
   |        |        |        |        |        |   3   |   4   |
   |--------+--------+--------+--------+--------+-------+-------|
   |  COM1  |  COM2  |   1    |  Off   |  Off   |  Off  |  Off  |
   |--------+--------+--------+--------+--------+-------+-------|
   |Disabled|Disabled|   2    |  Off   |  Off   |  Off  |  Off  |
   |--------+--------+--------+--------+--------+-------+-------|
   |Disabled|Disabled|Disabled|   On   |   On   |  On   |  On   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   I/O CONFIGURATION SW3                    |
   |------------------------------------------------------------|
   | Port 1 | Port 2 |  LPT   |switch 1|switch 2|switch |switch |
   |        |        |        |        |        |   3   |   4   |
   |--------+--------+--------+--------+--------+-------+-------|
   |  COM1  |  COM2  |   1    |   On   |   On   |  On   |  On   |
   |--------+--------+--------+--------+--------+-------+-------|
   |Disabled|Disabled|   2    |   On   |   On   |  On   |  On   |
   |--------+--------+--------+--------+--------+-------+-------|
   |Disabled|Disabled|Disabled|  Off   |  Off   |  Off  |  Off  |
   +------------------------------------------------------------+