
UNIDENTIFIED

NEAT 286

Processor         80286
Processor Speed   12/16MHz
Chip Set          C & T NEAT
Max. Onboard DRAM 8MB
Cache             None
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       16-bit external memory card slot
NPU Options       80287

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           J3        Turbo switch               JP5

  Speaker                    J4        Turbo LED                  LE1

  Power LED & keylock        J5        16-bit external             S1
                                       memory card

  Reset switch               JP4

                        USER CONFIGURABLE SETTINGS

                 Function                     Jumper         Position

     BIOS type select 27256                   JP1           pins 2 & 3
                                                              closed

      BIOS type select 27128                   JP1           pins 1 & 2
                                                              closed

     NPU mode select asynchronous with      JP3, JP6        pins 2 & 3
      CPU                                                     closed

      NPU mode select synchronous with       JP3, JP6        pins 1 & 2
      CPU                                                     closed

     Monitor type select color                JP7            Closed

      Monitor type select monochrome           JP7             Open

                            DRAM CONFIGURATION

    Size        Bank 0       Bank 1      Bank 2      Bank 3     DRAM Mode

    512KB      (18) 41256     NONE        NONE        NONE          1

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

    640KB      (18) 41256  (18) 4164      NONE        NONE          1

    640KB        NONE         NONE       (2) 256K   (2) 64K x       2
                                           x 9          9

     1MB       (18) 41256  (18) 41256     NONE        NONE          1

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

    1.5MB      (18) 41256  (18) 41256    (2) 256K     NONE          1
                                           x 9

    1.5MB      (18) 41256     NONE       (2) 256K    (2) 256K       2
                                           x 9         x 9

   1.64MB      (18) 41256  (18) 4164     (2) 256K    (2) 256K       1
                                           x 9         x 9

   1.64MB      (18) 41256  (18) 41256    (2) 256K   (2) 64K x       2
                                           x 9          9

     2MB       (18) 41256  (18) 41256    (2) 256K    (2) 256K    1 or 2
                                           x 9         x 9

     2MB       (18) 41100     NONE        NONE        NONE          1

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

     3MB       (18) 41256  (18) 41256    (2) 1M x     NONE          1
                                            9

     3MB       (18) 41100     NONE       (2) 256K    (2) 256K       2
                                           x 9         x 9

     4MB       (18) 41100  (18) 41100     NONE        NONE          1

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

   4.64MB      (18) 41256  (18) 4164     (2) 1M x    (2) 1M x       1
                                            9           9

   4.64MB      (18) 41100  (18) 41100    (2) 256K   (2) 64K x       2
                                           x 9          9

     5MB       (18) 41256  (18) 41256    (2) 1M x    (2) 1M x       1
                                            9           9

     5MB       (18) 41100  (18) 41100    (2) 256K    (2) 256K       2
                                           x 9         x 9

     6MB       (18) 41100  (18) 41100    (2) 1M x     NONE          1
                                            9

     6MB       (18) 41100     NONE       (2) 1M x    (2) 1M x       2
                                            9           9

     8MB       (18) 41100  (18) 41100    (2) 1M x    (2) 1M x    1 or 2
                                            9           9

        DRAM MODE JUMPER CONFIGURATION

      JP2         DRAM Mode 1    DRAM Mode 2

   pins 1 & 2        Open           Closed

   pins 2 & 3       Closed           Open

   pins 3 & 4        Open           Closed

   pins 4 & 5       Closed           Open

   pins 5 & 6        Open            Open

   pins 6 & 7        Open           Closed

   pins 7 & 8       Closed           Open

   pins 8 & 9        Open           Closed

  pins 9 & 10       Closed           Open

  pins 10 & 11       Open            Open

  pins 11 & 12       Open           Closed

  pins 12 & 13      Closed           Open

  pins 13 & 14       Open           Closed

  pins 14 & 15      Closed           Open

  pins 15 & 16       Open            Open

  pins 16 & 17       Open           Closed

  pins 17 & 18      Closed           Open

  pins 18 & 19       Open           Closed

  pins 19 & 20      Closed           Open

  pins 20 & 21       Open            Open

  pins 21 & 22       Open           Closed

  pins 22 & 23      Closed           Open

  pins 23 & 24       Open           Closed

  pins 24 & 25      Closed           Open

  pins 25 & 26       Open            Open

  pins 26 & 27       Open           Closed

  pins 27 & 28      Closed           Open

  pins 28 & 29       Open           Closed

  pins 29 & 30      Closed           Open


