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       # EVEREX SYSTEMS, INC.
       
          STEP 486e 12 SLOT (EV-18113) REV. E
       
          Processor         80486DX                                      
          Processor Speed   25/33MHz                                     
          Chip Set          C & T                                        
          Max. Onboard DRAM None                                         
          Cache             256KB                                        
          BIOS              AMI                                          
          Dimensions        330mm x 218mm                                
          I/O Options       External memory card                         
          NPU Options       4167                                         
       
 (IMG) IMG 1
                                                                
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |           Function            | Jumper/Switch |  Position  |
          |-------------------------------+---------------+------------|
          | » | EISA setup enabled        |      J13      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | EISA setup bypassed       |      J13      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | Password check enabled    |      J19      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | Password check disabled   |      J19      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | CPU speed select 25MHz    |      J18      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | CPU speed select 33MHz    |      J18      |    Open    |
          |---+---------------------------+---------------+------------|
          | » | BIOS type select 27256    |      JP1      |   Closed   |
          |---+---------------------------+---------------+------------|
          |   | BIOS type select 27512    |      JP1      |    Open    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 SERIAL PORT CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Port 1  | Port 2 |J29/pins 1 & |J29/pins|J29/pins|J29/pins|
          |          |        |      2      | 3 & 4  | 5 & 6  | 7 & 8  |
          |----------+--------+-------------+--------+--------+--------|
          |»|  COM1  |  COM2  |   Closed    |  Open  | Closed |  Open  |
          |-+--------+--------+-------------+--------+--------+--------|
          | |  COM1  |Disabled|   Closed    |  Open  |  Open  |  Open  |
          |-+--------+--------+-------------+--------+--------+--------|
          | |Disabled|  COM2  |    Open     |  Open  | Closed |  Open  |
          |-+--------+--------+-------------+--------+--------+--------|
          | |  COM3  |  COM4  |    Open     | Closed |  Open  | Closed |
          |-+--------+--------+-------------+--------+--------+--------|
          | |  COM3  |Disabled|    Open     | Closed |  Open  |  Open  |
          |-+--------+--------+-------------+--------+--------+--------|
          | |Disabled|  COM4  |    Open     |  Open  |  Open  | Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  SERIAL PORT 1 INTERRUPTS                  |
          |------------------------------------------------------------|
          |  Port 1  | J21/pins 1 & | J21/pins 3 | J21/pins | J21/pins |
          |          |      2       |    & 4     |  5 & 6   |  7 & 8   |
          |----------+--------------+------------+----------+----------|
          | » | IRQ3 |     Open     |    Open    |  Closed  |   Open   |
          |---+------+--------------+------------+----------+----------|
          |   | IRQ4 |     Open     |   Closed   |   Open   |   Open   |
          |---+------+--------------+------------+----------+----------|
          |   | IRQ5 |    Closed    |    Open    |   Open   |   Open   |
          |---+------+--------------+------------+----------+----------|
          |   | IRQ9 |     Open     |    Open    |   Open   |  Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  SERIAL PORT 2 INTERRUPTS                  |
          |------------------------------------------------------------|
          |  Port 2  | J21/pins 9 | J21/pins 11  | J21/pins | J21/pins |
          |          |    & 10    |     & 12     | 13 & 14  | 15 & 16  |
          |----------+------------+--------------+----------+----------|
          |   | IRQ3 |    Open    |     Open     |  Closed  |   Open   |
          |---+------+------------+--------------+----------+----------|
          | » | IRQ4 |    Open    |    Closed    |   Open   |   Open   |
          |---+------+------------+--------------+----------+----------|
          |   | IRQ5 |   Closed   |     Open     |   Open   |   Open   |
          |---+------+------------+--------------+----------+----------|
          |   | IRQ9 |    Open    |     Open     |   Open   |  Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                PARALLEL PORT CONFIGURATION                 |
          |------------------------------------------------------------|
          |       LPT        |  J29/pins 9 & 10   |  J29/pins 11 & 12  |
          |------------------+--------------------+--------------------|
          | » |      1       |       Closed       |        Open        |
          |---+--------------+--------------------+--------------------|
          |   |      2       |        Open        |       Closed       |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   |        Open        |        Open        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  PARALLEL PORT INTERRUPTS                  |
          |------------------------------------------------------------|
          |   IRQ   | J22/pins 1 & 2 | J22/pins 3 & 4 | J22/pins 5 & 6 |
          |---------+----------------+----------------+----------------|
          |   |  5  |      Open      |     Closed     |      Open      |
          |---+-----+----------------+----------------+----------------|
          | » |  7  |     Closed     |      Open      |      Open      |
          |---+-----+----------------+----------------+----------------|
          |   |  9  |      Open      |      Open      |     Closed     |
          +------------------------------------------------------------+
       
 (IMG) IMG 2
          
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 256K x |
          |      |      9      |      9      |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (4) 1M x 9  |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (4) 1M x 9  | (4) 1M x 9  |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 10MB | (4) 1M x 9  | (4) 1M x 9  | (4) 256K x | (4) 256K x |
          |      |             |             |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 16MB | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
          |------+-------------+-------------+------------+------------|
          | 16MB | (4) 4M x 9  |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (4) 4M x 9  | (4) 4M x 9  |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 34MB | (4) 4M x 9  | (4) 4M x 9  | (4) 256K x | (4) 256K x |
          |      |             |             |     9      |     9      |
          |------+-------------+-------------+------------+------------|
          | 40MB | (4) 4M x 9  | (4) 4M x 9  | (4) 1M x 9 | (4) 1M x 9 |
          |------+-------------+-------------+------------+------------|
          | 64MB | (4) 4M x 9  | (4) 4M x 9  | (4) 4M x 9 | (4) 4M x 9 |
          +------------------------------------------------------------+