DELL COMPUTER CORPORATION

SYSTEM V486/50/66 FS

Processor          80486DX2
Processor Speed    50(internal)/66(internal)MHz
Chip Set           LSI
Max. Onboard DRAM  64MB
Cache              128KB
BIOS               Unidentified
Dimensions         330mm x 218mm
I/O Options        Floppy drive interface, IDE interface, parallel
                   interface, PS/2 mouse interface, serial ports (2), VGA
                   feature connector
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 port                 CN8

  VGA feature connector       CN4      PS/2 mouse interface        CN9

  IDE interface               CN5

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Mouse connector enabled ( uses           J1             Closed
      IRQ12)

      Mouse connector disabled                 J1              Open

  »   I/O address select (26Eh-26Fh)           J2             Closed

      I/O address select (398h-399h)           J2              Open

  »   Factory configured - do not alter        J3              Open

  »   Factory configured - do not alter        J4             Closed

  »   CMOS memory normal operation             J5             Closed

      CMOS memory clear                        J5              Open

  »   Internal VGA enabled                     J6             Closed

      Internal VGA disabled                    J6              Open

  »   Factory configured - do not alter        J7              Open

  »   Factory configured - do not alter        J8              Open

  »   Factory configured - do not alter        J11             Open

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

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

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

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

     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

   CPU SPEED CONFIGURATION

   Size       J9       J10

  25MHz     Closed     Open

  33MHz      Open     Closed

  50iMHz    Closed     Open

  66iMHz     Open     Closed