
EVEREX SYSTEMS, INC.

3000B 386/16/20 (EV-1864)

Processor         80386SX
Processor Speed   20MHz
Chip Set          C & T
Max. onboard DRAM 8MB
Cache             None
BIOS              AMI
Dimensions        355mm x 304mm
I/O Options       None
NPU Options       80387SX

[Image]

              CONNECTIONS

  Purpose                    Location

  External battery              J4

                        USER CONFIGURABLE SETTINGS

              Function                   Jumper            Position

     Factory configured - do not          W1               Closed
      alter

     8-bit-select 5 wait state            W2          pins 2 & 3 closed

      8-bit-select 4 wait state            W2          pins 1 & 2 closed

     CPU speed select normal              W3          pins 2 & 3 closed

      CPU speed select high                W3                Open

      CPU speed select low                 W3          pins 1 & 2 closed

     16-bit select 2 wait state           W5          pins 1 & 2 closed

      16-bit select 1 wait state           W5          pins 2 & 3 closed

     Factory configured - do not          W7                Open
      alter

     Factory configured - do not          W8               Closed
      alter

     Monitor type select color            W9          pins 1 & 2 closed

      Monitor type select                  W9          pins 2 & 3 closed
      monochrome

  Note:Exact location of W1 & W8 is unknown.

                            DRAM CONFIGURATION

   Size     Bank 0     Bank 1     Bank 2     Bank 3      W4         W6

   1MB      (2) 256K  (2) 256K     NONE       NONE      pins 1   pins 1 &
              x 9       x 9                              & 2        2

   2MB      (2) 256K  (2) 256K   (2) 256K   (2) 256K    pins 1   pins 1 &
              x 9       x 9        x 9        x 9        & 2        2

   2MB      (2) 1M x    NONE       NONE       NONE      pins 2   pins 2 &
               9                                         & 3        3

   4MB      (2) 1M x  (2) 1M x     NONE       NONE      pins 2   pins 2 &
               9         9                               & 3        3

   6MB      (2) 1M x  (2) 1M x   (2) 1M x     NONE      pins 2   pins 2 &
               9         9          9                    & 3        3

   8MB      (2) 1M x  (2) 1M x   (2) 1M x   (2) 1M x    pins 2   pins 2 &
               9         9          9          9         & 3        3

  Note:Pins designated should be in the closed position.

