
DELL COMPUTER CORPORATION

System 320SX

Processor               80386SX
Processor Speed         20MHz
Chip Set                VLSI
Max. Onboard DRAM       8MB
Cache                   None (32KB on optional cache card)
BIOS                    AMI
Dimensions              342mm x 185mm
I/O Options             Bus mouse, cache card/shunt card slot, floppy
                        interface, IDE interface, parallel port, riser
                        card slot, serial ports (2), VGA port
NPU Options             80387SX

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose               Location

  16-bit riser card          EXP1       Floppy drive            JFLOP
                                        interface

  IDE interface LED           HD        IDE interface           JIDE

  External battery           JBAT       Parallel port           JLPT1

  Proprietary cache         JCACHE      Bus mouse port         JMOUSE
  card/shunt card

  Serial port 1              JCOM1      Front panel             JVIEW
                                        status LCD

  Serial port 2              JCOM2      VGA port                JVGA

  VGA pass-through           JFEAT      Reset switch        JP1/pins 25 &
                                                                 26

                        USER CONFIGURABLE SETTINGS

                 Function                       JP1          Position

     Factory test disabled                  pins 1 & 2        Open

      Factory test enabled                   pins 1 & 2       Closed

     Factory configured - do not alter      pins 3 & 4       Closed

     Monitor type select color              pins 5 & 6       Closed

      Monitor type select monochrome         pins 5 & 6        Open

     Password check enabled                 pins 7 & 8       Closed

      Password check disabled                pins 7 & 8        Open

     Late revision of IBM 5250 type          pins 9 &         Open
      network card installed                     10

      Early revision of IBM 5250 type         pins 9 &        Closed
      network card installed                     10

     Factory configured - do not alter       pins 11 &        Open
                                                 12

     Factory configured - do not alter       pins 13 &       Closed
                                                 14

     Monitor type select standard VGA        pins 15 &        Open
                                                 16

      Monitor type select multi-frequency     pins 15 &       Closed
      VGA                                        16

     Factory configured - do not alter       pins 17 &        Open
                                                 18

     IOCHRDY signal disabled to IDE          pins 19 &       Closed
      drive(s)                                   20
                                                               Open
                                              pins 21 &
                                                 22

      IOCHRDY signal enabled to IDE           pins 19 &        Open
      drive(s)                                   20
                                                              Closed
                                              pins 21 &
                                                 22

     VGA interface enabled                   pins 23 &       Closed
                                                 24

      VGA interface disabled                  pins 23 &        Open
                                                 24

     Factory configured - do not alter       pins 25 &        Open
                                                 26

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (1) 256K x 36         NONE

       2MB        (1) 256K x 36    (1) 256K x 36

       4MB         (1) 1M x 36          NONE

       5MB         (1) 1M x 36     (1) 256K x 36

       8MB         (1) 1M x 36      (1) 1M x 36

    VRAM CONFIGURATION

    Size        Bank 0

    256KB        NONE

    512KB     (2) 44256

