DELL COMPUTER CORPORATION

DIMENSION XPS XX MDT, XPS XX FS

Device Type  Mainboard
Processor    80486DX2/80486DX4
Processor    50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set     Unidentified
Maximum      64MB
Onboard
Memory
Cache        128/256KB
BIOS         Unidentified
Dimensions   330mm x 218mm
I/O Options  32-bit VESA local bus slots (2), floppy drive interface, IDE
             interface, parallel port, PS/2 mouse port, serial ports (2)

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  IDE interface              CN1       Serial port 2              J16

  Floppy drive               CN2       Speaker                    J33
  interface

  External battery           CN3       Power LED & keylock        J34

  PS/2 mouse port            CN4       32-bit VESA local bus   SL1 & SL2
                                       slots

  Serial port 1              J12       IDE interface LED          W11

  Parallel port              J15       Reset switch               W12

                        USER CONFIGURABLE SETTINGS

                 Function                      Label         Position

  »   Factory configured - do not alter         W1             Open

  »   Parallel port bidirectional               W5           Pins 1 & 2
                                                              closed

      Parallel port unidirectional              W5           Pins 2 & 3
                                                              closed

  »   Monitor type select color                 W6            Closed

      Monitor type select monochrome            W6             Open

  »   Factory configured - do not alter         W7            Closed

  »   Factory configured - do not alter         W8           Pins 1 & 2
                                                              closed

  »   Factory configured - do not alter         W20          Pins 1 & 2
                                                              closed

  »   Factory configured - do not alter         W31            Open

  »   Factory configured - do not alter         W40          Pins 1 & 2
                                                              closed

  »   Factory configured - do not alter         W70          Pins 1 & 2
                                                              closed

  »   Factory configured - do not alter         W71            Open

  »   Factory configured - do not alter        SW1/2            On

  »   Factory configured - do not alter        SW1/3            Off

  »   Factory configured - do not alter        SW1/4            Off

  Note: The location of the factory configured jumpers are unidentified.

                           SIMM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

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

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

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

     28MB       (1) 4M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

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

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

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

     52MB       (1) 1M x 36   (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

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

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        None        Unidentified

     256KB        (4) 32K x 8     (4) 32K x 8    Unidentified

                 CACHE JUMPER CONFIGURATION

   Size       W64       W65       W66       W67       W68

  128KB      2 & 3     1 & 2     1 & 2     1 & 2     2 & 3

  256KB      2 & 3     2 & 3     2 & 3     2 & 3     2 & 3

  Note: Pins designated should be in the closed position.

  CPU SPEED SELECTION

   Speed       SW1/1

   50iMHz        On

   66iMHz       Off

   75iMHz        On

  100iMHz       Off