
DELL COMPUTER CORPORATION

Precision 386DX/33

Processor               80386DX
Processor Speed         33MHz
Chip Set                VLSI
Max. Onboard DRAM       32MB
Cache                   16KB (chipset internal)
BIOS                    AMI
Dimensions              330mm x 218mm
I/O Options             Bus mouse port, floppy interface, IDE interface,
                        parallel port, serial ports (2), VGA port
NPU Options             80387

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Internal battery holder     BAT      Reset switch                P11

  Serial port 1              COM1      Speaker                     P12

  Serial port 2              COM2      Power LED & keylock         P13

  Floppy drive interface      FDD      Turbo LED                   P14

  IDE interface               IDE      IDE interface LED           P15

  Parallel port               LPT      VGA port                    VGA

  Bus mouse                   MSE

                        USER CONFIGURABLE SETTINGS

               Function                  Jumper/Switch        Position

     VGA interrupt request select            JP1             pins 1 & 2
      none                                                     closed

      VGA interrupt request select            JP1             pins 2 & 3
      IRQ9                                                     closed

     VGA port enabled                        JP2             pins 1 & 2
                                                               closed

      VGA port disabled                       JP2             pins 2 & 3
                                                               closed

     IDE drives installed select             JP3             pins 1 & 2
      one                                                      closed

      IDE drives installed select             JP3             pins 2 & 3
      two                                                      closed

     Monitor type select color               JP6             pins 1 & 2
                                                               closed

      Monitor type select monochrome          JP6             pins 2 & 3
                                                               closed

     CMOS memory normal operation            JP7             pins 2 & 3
                                                               closed

      CMOS memory clear                       JP7             pins 1 & 2
                                                               closed

     Power good signal detect from           JP10            pins 1 & 2
      power supply                                             closed

      Power good signal detect from           JP10            pins 2 & 3
      board                                                    closed

     Monitor type select standard           SW1/1               Off
      VGA

      Monitor type select NEC                SW1/1               On
      MultiSync I (only)

     Monitor type select PS/2 style         SW1/2               On
      VGA

      Monitor type select AT style           SW1/2               Off
      VGA

     Monitor type select 1024 x 768         SW1/5               On
      interlaced

      Monitor type select 1024 x 768         SW1/5               Off
      non-interlaced

                            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

     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

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

     16MB       (1) 4M x 36       NONE           NONE           NONE

     17MB       (1) 4M x 36    (1) 256K x        NONE           NONE
                                   36

     18MB       (1) 4M x 36    (1) 256K x     (1) 256K x        NONE
                                   36             36

     20MB       (1) 4M x 36   (1) 1M x 36        NONE           NONE

     24MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36        NONE

     32MB       (1) 4M x 36   (1) 4M x 36        NONE           NONE

     33MB       (1) 4M x 36   (1) 4M x 36     (1) 256K x        NONE
                                                  36

     34MB       (1) 4M x 36   (1) 4M x 36     (1) 256K x    (1) 256K x 36
                                                  36

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

     40MB       (1) 4M x 36   (1) 4M x 36    (1) 1M x 36     (1) 1M x 36

     48MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36        NONE

     64MB       (1) 4M x 36   (1) 4M x 36    (1) 4M x 36     (1) 4M x 36

                         VGA REFRESH CONFIGURATION

              Refresh rate                    SW1/3            SW1/4

      800 x 600 x 16 at 56Hz or 800 x          On               On
              600 x 256 at 56Hz

       800 x 600 x 16 at 72Hz or 800 x          On              Off
              600 x 256 at 56Hz

       800 x 600 x 16 at 60Hz or 800 x         Off               On
              600 x 256 at 60Hz

       800 x 600 x 16 at 72Hz or 800 x         Off              Off
              600 x 256 at 60Hz

          VRAM CONFIGURATION

       Size              Bank 0

       256KB              NONE

       512KB        (2) 44256 ZIPPs

