UNIDENTIFIED

SW-386SX

Processor         80386SX
Processor Speed   16/20MHz
Chip Set          Intel
Max. Onboard DRAM 8MB
Cache             None
BIOS              AMI/Phoenix
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            J1       Turbo switch                J23

  Turbo LED                   J21      Power LED & keylock         J24

  Reset switch                J22      Speaker                     J25

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Turbo switch enabled                    J23              Open

      Turbo switch disabled                   J23           pins 2 & 3
                                                              closed

  »   Factory configured - do not             JP1              Open
      alter

  »   CMOS memory normal operation            JP2           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           pins 2 & 3
                                                              closed

  »   BIOS type select AMI                    JP4           pins 1 & 2
                                                              closed

      BIOS type select Phoenix                JP4           pins 2 & 3
                                                              closed

  »   Monitor type select color               JP5           pins 1 & 2
                                                              closed

      Monitor type select monochrome          JP5           pins 2 & 3
                                                              closed

                        DRAM CONFIGURATION (TYPE A)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

    512KB        (18) 41256        NONE           NONE           NONE

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

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

            Note:Type A -- base memory = banks 0 & 1 and extended memory
            = banks 2 & 3. Type B - base memory = banks 2 & 3 and
            extended memory = banks 0 & 1.

                        DRAM CONFIGURATION (TYPE B)

     Size          Bank 0          Bank 1        Bank 2         Bank 3

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

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

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

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

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

            Note:Type A -- base memory = banks 0 & 1 and extended memory
            = banks 2 & 3. Type B - base memory = banks 2 & 3 and
            extended memory = banks 0 & 1.

                         DRAM JUMPER CONFIGURATION

            Type                                  JP9

           Type A               pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10,
                                11 & 12, 13 & 14, 15 & 16, 17 & 18, 19 &
                                      20, 21 & 22, 23 & 24 closed

           Type B               pins 1 & 3, 2 & 4, 5 & 7, 6 & 8, 9 & 11,
                                10 & 12, 13 & 15, 14 & 16, 17 & 19, 18 &
                                      20, 21 & 23, 22 & 24 closed

            Note:Type A -- base memory = banks 0 & 1 and extended memory
            = banks 2 & 3. Type B - base memory = banks 2 & 3 and
            extended memory = banks 0 & 1.

                   DRAM MODE CONFIGURATION

        Mode                 JP21                 JP22

         F1            pins 1 & 2 closed   pins 2 & 3 closed

         F4            pins 1 & 2 closed   pins 1 & 2 closed

         W01           pins 2 & 3 closed   pins 1 & 2 closed

         W02           pins 2 & 3 closed   pins 2 & 3 closed