
PEAKTRON COMPUTER, INC.

PA286-SMT-12/16/20, PA286-SMT-12D/16D

Processor         80286
Processor Speed   12/16/20MHz
Chip Set          Peaktron
Max. Onboard DRAM 16MB
Cache             None
BIOS              AMI
Dimensions        247mm x 220mm
I/O Options       None
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Power LED & keylock         J1       Turbo switch                J4

  Speaker                     J2       Reset switch                J5

  Turbo LED                   J3       External battery            J11

                        USER CONFIGURABLE SETTINGS

               Function                      Jumper          Position

     Monitor type select monochrome           J6              Open

      Monitor type select color                J6             Closed

     CPU speed control select turbo           J9              Open
      switch

      CPU speed control select                 J9            pins 1 & 2
      keyboard controller pin 32                              closed

      CPU speed control select                 J9            pins 2 & 3
      keyboard controller pin 23                              closed

     NPU mode select synchronous             J12            pins 2 & 3
      with CPU                                                closed

      NPU mode select asynchronous            J12            pins 1 & 2
      with CPU                                                closed

     Bus speed select ATCLK/2            SW1/jumper 1         Open

      Bus speed select ATCLK/3            SW1/jumper 1        Closed

     Parity check enabled                SW1/jumper 2        Closed

      Parity check disabled               SW1/jumper 2         Open

     DRAM select 0 wait states           SW1/jumper 3        Closed

      DRAM select 1 wait state            SW1/jumper 3         Open

     Shadow BIOS ROM disabled            SW1/jumper 4        Closed

      Shadow BIOS ROM enabled             SW1/jumper 4         Open

                            DRAM CONFIGURATION

  Size     Bank 0       P-0       Bank 1       P-1       Bank 2   Bank 3

  512KB      (4)         (2)       NONE        NONE      NONE      NONE
            44256      41256

  512KB     NONE        NONE       NONE        NONE       (2)      NONE
                                                         256K x
                                                           9

   1MB       (4)         (2)        (4)         (2)      NONE      NONE
            44256      41256       44256      41256

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

  1.5MB      (4)         (2)        (4)         (2)       (2)      NONE
            44256      41256       44256      41256      256K x
                                                           9

   2MB       (4)         (2)       NONE        NONE      NONE      NONE
           441000      411000

   2MB      NONE        NONE       NONE        NONE      (2) 1M    NONE
                                                          x 9

   3MB       (4)         (2)        (4)         (2)      (2) 1M    NONE
            44256      41256       44256      41256       x 9

   4MB       (4)         (2)        (4)         (2)      NONE      NONE
           441000      411000     441000      411000

   4MB      NONE        NONE       NONE        NONE      (2) 1M    (2) 1M
                                                          x 9       x 9

   6MB       (4)         (2)        (4)         (2)      (2) 1M    NONE
           441000      411000     441000      411000      x 9

   8MB      NONE        NONE       NONE        NONE      (2) 4M    NONE
                                                          x 9

  16MB      NONE        NONE       NONE        NONE      (2) 4M    (2) 4M
                                                          x 9       x 9

                     DRAM JUMPER CONFIGURATION

   Size     SW1/5    SW1/6     SW1/7     SW1/8      J7        J8

  512KB     Open     Closed    Open      Open      Open      Open

  512KB     Open     Closed    Open      Open     2 & 3     1 & 2

   1MB      Open     Closed    Open      Closed    Open      Open

   1MB      Open     Closed    Open      Closed   2 & 3     1 & 2

  1.5MB     Open      Open     Closed    Open     1 & 2     2 & 3

   2MB      Closed    Open     Open      Open      Open      Open

   2MB      Closed    Open     Open      Open     2 & 3     1 & 2

   3MB      Open     Closed    Closed    Open     1 & 2     2 & 3

   4MB      Closed    Open     Open      Closed    Open      Open

   4MB      Closed    Open     Open      Closed   2 & 3     1 & 2

   6MB      Closed    Open     Closed    Open     1 & 2     2 & 3

   8MB      Closed   Closed    Open      Open     2 & 3     1 & 2

   16MB     Closed   Closed    Open      Closed   2 & 3     1 & 2

  Note: Pins designated should be in the closed position.

                      BIOS CONFIGURATION

        Size                 JP1                  JP10

        27256          pins 1 & 2 closed          Open

        27512          pins 2 & 3 closed         Closed

