DELL COMPUTER CORPORATION

SYSTEM V486/50/66 MDT

Processor         80486DX/80486DX2/Pentium Overdrive
Processor Speed   25/33/50(internal)/66(internal)MHz
Chip Set          Unidentified
Max. Onboard DRAM 64MB
Cache             128KB
BIOS              Unidentified
Dimensions        330mm x 218mm
I/O Options       Floppy drive interface, IDE interface, parallel port,
                  serial ports (2)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  External battery            CN1      Floppy drive interface      CN6

  IDE interface LED           CN2      Parallel port               CN7

  Chassis fan power           CN3      Serial ports                CN8

  Video connector             CN4      Mouse connector             CN9

  IDE interface               CN5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Mouse connector enabled (uses            J1             Closed
      IRQ12)

      Mouse connector disabled                 J1              Open
      (disables IRQ12)

  »   Factory configured - do not              J2             Closed
      alter

  »   Factory configured - do not              J3              Open
      alter

  »   Factory configured - do not              J4             Closed
      alter

  »   CMOS memory normal operation             J5             Closed

      CMOS memory clear                        J5              Open

  »   On board VGA controller enabled          J6             Closed

      On board VGA controller disabled         J6              Open

  »   Factory configured - do not              J7              Open
      alter

  »   Factory configured - do not              J8              Open
      alter

  »   Factory configured - do not             J11              Open
      alter

                           DRAM 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) 1M x 36   (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

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

     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) 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

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

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

   CPU SPEED CONFIGURATION

  Speed       J9       J10

  25MHz     Closed     N/A

  33MHz      N/A      Closed

  50iMHz     Open      N/A

  66iMHz     N/A       Open