EVEREX SYSTEMS, INC.

STEP 286

Processor         80286
Processor Speed   12/16MHz
Chip Set          C & T
Max. Onboard DRAM 4MB
Cache             None
BIOS              AMI
Dimensions        246mm x 216mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Turbo LED                   P1       Speaker                     P4

  Turbo Switch                P2       Power LED & Keylock         P5

  Reset switch                P3

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select monochrome           SW3            Closed

      Monitor type select color                SW3             Open

  »   DRAM access time 100ns                   W2             Closed

      DRAM access time 70ns                    W2              Open

  »   CPU select 0 wait states                 W3             Closed

      CPU select 1 wait state                  W3              Open

  »   Factory configured - do not alter     W4 - W11            N/A

  »   DRAM access time 80ns                    W15            closed

      DRAM access time 60ns to 70ns            W15             open

  Note:On 12MHz board W2 controls DRAM access time and W15 must remain
  closed.

  On 16MHz board W15 controls DRAM access time and W2 must remain open.

             DRAM CONFIGURATION

     Size          Bank 0        Bank 1

     512KB       (18) 41256       NONE

      1MB        (18) 41256    (18) 41256

      2MB        (18) 411000      NONE

     2.5MB       (18) 411000   (18) 41256

      4MB        (18) 411000   (18) 411000

      DRAM SWITCH CONFIGURATION

  Size     SW2/2    SW2/3    SW2/4

  512KB     On        On       On

   1MB      On        On      Off

   2MB      Off       On       On

  2.5MB     On       Off       On

   4MB      On        On       On

                          NPU SPEED CONFIGURATION

          Speed                     W12                     W13

     5MHz or disabled         pins 2 & 3, 5 & 6       pins 2 & 3, 5 & 6
                                   closed                  closed

        8 or 10MHz            pins 1 & 2, 4 & 5       pins 1 & 2, 4 & 5
                                   closed                  closed