
EVEREX SYSTEMS, INC.

STEP 486

Processor                 80486SX
Processor Speed           25/33MHz
Chip Set                  Unidentified
Video Chip Set            None
Maximum Onboard Memory    32MB (on external memory card)
Maximum Video Memory      None
Cache                     Unidentified
BIOS                      Unidentified
Dimensions                355mm x 304mm
I/O Options               External memory card, parallel port, serial ports
                          (2)
NPU Options               4167

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Parallel port               CN1      Serial port 2               CN3

  Serial port 1               CN2      External memory card        SL1

                        USER CONFIGURABLE SETTINGS

                Function
                                             Label
                                                             Position

  
     Factory configured - do not alter
                                              JP3
                                                               Open

  
     Factory configured - do not alter
                                              JP4
                                                            Pins 2 & 3
                                                              closed

  
     Factory configured - do not alter
                                              JP6
                                                               Open

  
     Factory configured - do not alter
                                              JP10
                                                               Open

  
     Factory configured - do not alter
                                              JP11
                                                               Open

  
     Factory configured - do not alter
                                              JP12
                                                               Open

              CACHE CONFIGURATION

  Note: The size of the cache is unidentified.

                      SERIAL PORT INTERRUPT SELECTION

          IRQ
                                  J2
                                                            J3

         IRQ3
                           Pins 3 & 4 closed
                                                     Pins 3 & 4 closed

         IRQ4
                           Pins 5 & 6 closed
                                                     Pins 5 & 6 closed

         IRQ5
                           Pins 7 & 8 closed
                                                     Pins 7 & 8 closed

         IRQ9
                           Pins 1 & 2 closed
                                                     Pins 1 & 2 closed

            Note: Port 1 interrupts are set by one jumper and Port 2
            interrupts are set by the other jumper. The correspondence
            between ports and jumpers is unidentified.

    PARALLEL PORT INTERRUPT SELECTION

         IRQ                  J1

        IRQ5          Pins 3 & 4 closed

        IRQ7          Pins 5 & 6 closed

        IRQ9          Pins 1 & 2 closed

[Image]

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     4MB        (4) 256K x 9   (4) 256K x 9   (4) 256K x 9  (4) 256K x 9

     4MB        (4) 1M x 9        None           None           None

     8MB        (4) 1M x 9     (4) 1M x 9        None           None

     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

