DELL COMPUTER CORPORATION

System 325P

Processor               80386DX
Processor Speed         25MHz
Chip Set                VLSI
Max. Onboard DRAM       16MB
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             80387

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                 Location

  16-bit riser card        EXP1       VGA pass-through          JFEAT

  IDE interface LED         HD        Floppy drive              JFLOP
                                      interface

  External battery         JBAT       IDE interface             JIDE

  Proprietary cache       JCACHE      Parallel port             JLPT1
  card/shunt card

  Serial port 1           JCOM1       Bus mouse port           JMOUSE

  Serial port 2           JCOM2       Front panel status        JVIEW
                                      LCD

  Factory diagnostic      JDIAG       VGA port                  JVGA
  interface

                        USER CONFIGURABLE SETTINGS

                 Function                       JP1          Position

  »   Factory configured - do not alter      pins 1 & 2        Open

  »   Monitor type select color              pins 3 & 4       Closed

      Monitor type select monochrome         pins 3 & 4        Open

  »   Factory test disabled                  pins 5 & 6        Open

      Factory test enabled                   pins 5 & 6       Closed

  »   Password check enabled                 pins 7 & 8       Closed

      Password check disabled                pins 7 & 8        Open

  »   IDE drives installed select one         pins 9 &        Closed
      (on-board IDE port only)                   10

      IDE drives installed select two         pins 9 &         Open
      (on-board IDE port only)                   10

  »   IDE port enabled                        pins 11 &        Open
                                                 12

      IDE port disabled                       pins 11 &       Closed
                                                 12

  »   Monitor type select standard VGA        pins 13 &        Open
                                                 14

      Monitor type select multifrequency      pins 13 &       Closed
      (MultiSync) VGA                            14

  »   VGA interrupt request select none       pins 15 &        Open
                                                 16

      VGA interrupt request select IRQ9       pins 15 &       Closed
                                                 16

  »   IOCHRDY signal disabled to IDE          pins 17 &       Closed
      drive(s)                                   18
                                                               Open
                                              pins 19 &
                                                 20

      IOCHRDY signal enabled to IDE           pins 17 &        Open
      drive(s)                                   18
                                                              Closed
                                              pins 19 &
                                                 20

  »   VGA interface enabled                   pins 21 &       Closed
                                                 22

      VGA interface disabled                  pins 21 &        Open
                                                 22

  »   Factory configured - do not alter       pins 23 &        Open
                                                 24

  »   Factory configured - do not alter       pins 25 &        Open
                                                 26

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     1MB         (1) 256K x       NONE           NONE           NONE
                    36

     2MB         (1) 256K x    (1) 256K x        NONE           NONE
                    36             36

     3MB         (1) 256K x    (1) 256K x     (1) 256K x        NONE
                    36             36             36

     4MB         (1) 256K x    (1) 256K x     (1) 256K x    (1) 256K x 36
                    36             36             36

     4MB        (1) 1M x 36       NONE           NONE           NONE

     5MB        (1) 1M x 36    (1) 256K x        NONE           NONE
                                   36

     6MB        (1) 1M x 36    (1) 256K x     (1) 256K x        NONE
                                   36             36

     7MB        (1) 1M x 36    (1) 256K x     (1) 256K x    (1) 256K x 36
                                   36             36

     8MB        (1) 1M x 36   (1) 1M x 36        NONE           NONE

     9MB        (1) 1M x 36   (1) 1M x 36     (1) 256K x        NONE
                                                  36

     10MB       (1) 1M x 36   (1) 1M x 36     (1) 256K x    (1) 256K x 36
                                                  36

     12MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36        NONE

     13MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 256K x 36

     16MB       (1) 1M x 36   (1) 1M x 36    (1) 1M x 36     (1) 1M x 36

    VRAM CONFIGURATION

    Size        Bank 0

    256KB        NONE

    51KB      (2) 44256