UNIDENTIFIED

80386 SX/16/20

Processor         80386SX
Processor Speed   16/20MHz
Chip Set          C & T NEAT
Max. Onboard DRAM 8MB
Cache             None
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  Reset switch              JP1        Turbo switch              JP4

  Power LED & keylock       JP2        Turbo LED                 JP5

  Speaker                   JP3        External battery          JP6

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   NPU mode select synchronous with        JP8             Closed
      CPU

      NPU mode select asynchronous            JP8              Open
      with CPU

  »   NPU disabled                            JP9             Closed

      NPU enabled                             JP9              Open

  »   Pipeline mode enabled                   JP10            Closed

      Pipeline mode disabled                  JP10             Open

  »   Monitor type select color               JP11            Closed

      Monitor type select monochrome          JP11             Open

                            DRAM CONFIGURATION

     Size          Bank 0          Bank 1         Bank 2        Bank 3

    512KB        (18) 41256         NONE           NONE          NONE

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

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

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

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

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

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

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

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

     2MB         (18) 411000        NONE           NONE          NONE

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

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

     4MB         (18) 411000    (18) 411000        NONE          NONE

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

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

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

     6MB         (18) 411000    (18) 411000     (2) 1M x 9       NONE

     8MB         (18) 411000    (18) 411000     (2) 1M x 9    (2) 1M x 9

                         DRAM JUMPER CONFIGURATION

            Size                                 JP12

            512KB             pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

            512KB             pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

            640KB             pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

            640KB             pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

             1MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             1MB              pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

            1.5MB             pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

           1.64MB             pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             2MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             2MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             2MB              pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

                     DRAM JUMPER CONFIGURATION (CON’T)

            Size                                 JP12

             3MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             4MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             4MB              pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

           4.64MB             pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             5MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

             6MB              pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15,
                                          and 17 & 18 closed

             8MB              pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14,
                                          and 16 & 17 closed

                    BATTERY CONFIGURATION

        Type                 JP6                  JP7

      Internal         pins 2 & 3 closed   pins 2 & 3 closed

      External              Closed         pins 1 & 2 closed