UNIDENTIFIED

NEXT-286

Processor         80286
Processor Speed   12/16/20MHz
Chip Set          Protech
Max. Onboard DRAM 1MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  Speaker              J10 (pins 1 &   Reset switch              J15
                            2)

  Power LED            J10 (pins 3 &   Reset switch              J16
                            4)

  Turbo switch             J11         Turbo LED                 LED

  Keylock                  J14

  Note: The location of jumper LED is unidentified.

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch        Position

  »   BIOS type select 27128                 J9              pins 1 & 2
                                                              closed

      BIOS type select 27256                 J9              pins 2 & 3
                                                              closed

  »   I/O wait state select 0 wait           J12              Closed
      states

      I/O wait state select 1 wait           J12               Open
      state

  »   Factory configured - do not            J13              Closed
      alter

  »   Factory configured - do not           SW1/1               Off
      alter

  »   NPU disabled                          SW1/2               On

      NPU enabled                           SW1/2               Off

                         DRAM CONFIGURATION

     Size        Bank 0       Parity 0       Bank 1       Parity 1

    256KB      (18) 41256     (2) 44256       NONE          NONE

    512KB      (18) 41256     (2) 44256    (18) 4164        NONE

    640KB      (18) 41256     (2) 44256    (18) 4464        NONE

     1MB       (18) 41256     (2) 44256    (18) 41256    (2) 44256

    CACHE CONFIGURATION

  Size     SW1/3    SW1/4

  256KB     Off      Off

  512KB     Off       On

  640KB      On      Off

   1MB       On       On

             VIDEO TYPE CONFIGURATION

      Type            SW1/5            SW1/6

  CGA (40 x 20)        Off               On

  CGA (80 x 25)         On              Off

     EGA/VGA            On               On

   Monochrome          Off              Off

            FLOPPY DRIVE CONFIGURATION

      Type            SW1/7            SW1/8

  Drive A 5.25"         On              Off

  Drive B 5.25"        Off               On

  Drive A 3.50"        Off               On

  Drive B 3.50"         On              Off