
UNIDENTIFIED

NT-386/CT

Processor         80386DX
Processor Speed   16/20/25/33MHZ
Chip Set          C & T Peak/DM
Max. onboard DRAM 32MB
Cache             32/64/128/256KB
BIOS              Unknown
Dimensions        330mm x 218mm
I/O Options       32-bit external memory card
NPU Options       80387DX/3167

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                  Location

  External battery           JP5       Turbo switch               JP28

  Power LED & keylock       JP21       Reset switch               JP29

  Speaker                   JP24       32-bit external             S1
                                       memory card

  Turbo LED                 JP25

                        USER CONFIGURABLE SETTINGS

              Function                  Jumper/Switch         Position

     Monitor type select color              JP3               Closed

      Monitor type select                    JP3                Open
      monochrome

     NPU synchronous with CPU               JP26               Open

      NPU asynchronous                       JP26              Closed

     Power good signal detect from          JP27            pins 2 & 3
      board                                                    closed

      Power good signal detect from          JP27            pins 1 & 2
      power supply                                             closed

     CMOS memory normal operation           JP30            pins 2 & 3
                                                               closed

      CMOS memory clear                      JP30            pins 1 & 2
                                                               closed

                            DRAM CONFIGURATION

    Size       Bank 0      Bank 1       Bank 2       Bank 3        JP1

    1MB       (4) 256K      NONE         NONE         NONE       pins 1 &
                x 9                                                 2

    2MB       (4) 256K     (4) 256K      NONE         NONE       pins 1 &
                x 9          x 9                                    2

    3MB       (4) 256K     (4) 256K    (4) 256K       NONE       pins 1 &
                x 9          x 9         x 9                        2

    4MB       (4) 256K     (4) 256K    (4) 256K     (4) 256K     pins 1 &
                x 9          x 9         x 9          x 9           2

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

    5MB       (4) 256K     (4) 1M x      NONE         NONE       pins 2 &
                x 9           9                                     3

    6MB       (4) 256K     (4) 256K    (4) 1M x       NONE       pins 2 &
                x 9          x 9          9                         3

    8MB       (4) 1M x     (4) 1M x      NONE         NONE       pins 1 &
                 9            9                                     2

    10MB      (4) 256K     (4) 256K    (4) 1M x     (4) 1M x     pins 2 &
                x 9          x 9          9            9            3

    12MB      (4) 1M x     (4) 1M x    (4) 1M x       NONE       pins 1 &
                 9            9           9                         2

    16MB      (4) 1M x     (4) 1M x    (4) 1M x     (4) 1M x     pins 1 &
                 9            9           9            9            2

    16MB      (4) 4M x      NONE         NONE         NONE       pins 1 &
                 9                                                  2

    17MB      (4) 256K     (4) 4M x      NONE         NONE       pins 2 &
                x 9           9                                     3

    18MB      (4) 256K     (4) 256K    (4) 4M x       NONE       pins 2 &
                x 9          x 9          9                         3

    20MB      (4) 1M x     (4) 4M x      NONE         NONE       pins 2 &
                 9            9                                     3

    24MB      (4) 1M x     (4) 1M x    (4) 4M x       NONE       pins 2 &
                 9            9           9                         3

    32MB      (4) 4M x     (4) 4M x      NONE         NONE       pins 1 &
                 9            9                                     2

    33MB      (4) 4M x     (4) 4M x    (4) 256K       NONE       pins 2 &
                 9            9          x 9                        3

    34MB      (4) 4M x     (4) 4M x    (4) 256K     (4) 256K     pins 2 &
                 9            9          x 9          x 9           3

    36MB      (4) 4M x     (4) 4M x    (4) 1M x       NONE       pins 2 &
                 9            9           9                         3

    40MB      (4) 1M x     (4) 1M x    (4) 4M x     (4) 4M x     pins 2 &
                 9            9           9            9            3

    48MB      (4) 4M x     (4) 4M x    (4) 4M x       NONE       pins 1 &
                 9            9           9                         2

    64MB      (4) 4M x     (4) 4M x    (4) 4M x     (4) 4M x     pins 1 &
                 9            9           9            9            2

  Note:Banks 2 & 3 are located on an optional 32-bit external memory
  card.

  Pins designated should be in the closed position.

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

     32KB        (4) 8K x 8        NONE       (2) 16K x 4

     64KB        (4) 8K x 8     (4) 8K x 8    (2) 16K x 4

     128KB      (4) 32K x 8        NONE       (2) 64K x 4

     256KB      (4) 32K x 8    (4) 32K x 8    (2) 64K x 4

                        CACHE JUMPER CONFIGURATION

    Size           JP6            JP7            JP8             JP9

    32KB          Open          Closed          Closed         Closed

    64KB          Open         pins 2 & 3     pins 2 & 3      pins 1 & 2
                                closed          closed         closed

    128KB        Closed        pins 1 & 2     pins 1 & 2      pins 2 & 3
                                closed          closed         closed

    256KB        Closed        pins 1 & 2     pins 1 & 2      pins 1 & 2
                                closed          closed         closed

                                CACHE JUMPER CONFIGURATION

  Size    JP11     JP12     JP13     JP14     JP15    JP16     JP17   JP18   JP19   JP20

  32KB    Open     Open    Closed    Open    Closed   Open     2 &    Open   2 &    Open
                                                                3             3

  64KB    Open     Open    Closed   Closed   Closed   Open     2 &    Open   Open  Closed
                                                                3

  128KB   Open    Closed    Open    Closed   Closed   Open     1 &    1 &    Open  Closed
                                                                2      2

  256KB   Closed  Closed    Open    Closed    Open    Closed   1 &    1 &    1 &   Closed
                                                                2      2      2

