
DELL COMPUTER CORPORATION

POWEREDGE XE 4XX

Processor         80486SX/80487SX/80486DX/80486DX2
Processor Speed   25/33/50(internal)/66(internal)MHz
Chip Set          Intel
Max. Onboard DRAM 128MB
Cache             256KB (with external cache card)
BIOS              Intel
Dimensions        330mm x 218mm
I/O Options       32-bit riser card, external cache card, floppy drive
                  interface, IDE interface, parallel port, PS/2 mouse port,
                  serial ports (2), VGA feature connector, VGA port
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                Location     Purpose                  Location

  PS/2 mouse port          CN1        IDE interface LED          J10

  Serial port 1            CN2        Audio interface            J11

  Serial port 2            CN3        Chassis fan power          J12

  Parallel port            CN4        Thermal monitoring         J13
                                      board interface

  VGA port                 CN5        Speaker                    J14

  Floppy drive             CN6        External battery           J15
  interface

  IDE interface            CN7        Riser Card                 SL1

  VGA feature              CN8        External cache card        SL2
  connector

                        USER CONFIGURABLE SETTINGS

              Function                   Jumper/Switch        Position

     Factory configured - do not             J1               Closed
      alter

     Integrated SCSI host adapter            J2               Closed
      terminated

      Integrated SCSI host adapter            J2                Open
      not terminated

     EISA configuration settings             J3                Open
      retained at next system boot

      EISA configuration settings             J3               Closed
      not retained at next system
      boot

     Factory configured - do not             J4               Closed
      alter

     Factory configured - do not             J6               Closed
      alter

     Factory configured - do not             J8               Closed
      alter

     Factory configured - do not             J9               Closed
      alter

     Factory configured - do not             J16              Closed
      alter

     VGA subsystem enabled                  SW1/1               On

      VGA subsystem disabled                 SW1/1              Off

     CMOS memory normal operation           SW1/2               On

      CMOS memory clear                      SW1/2              Off

     I/O controller address (26Eh           SW1/3               On
      - 26Fh)

      I/O controller address (398h           SW1/3              Off
      -399h)

     Flash BIOS write protect               SW1/4               On
      enabled

      Flash BIOS write protect               SW1/4              Off
      enabled

                           DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

     16MB       (1) 2M x 36   (1) 2M x 36        NONE          NONE

     24MB       (1) 2M x 36   (1) 2M x 36    (1) 1M x 36    (1) 1M x 36

     32MB       (1) 2M x 36   (1) 2M x 36    (1) 2M x 36    (1) 2M x 36

     32MB       (1) 4M x 36   (1) 4M x 36        NONE          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) 2M x 36    (1) 2M x 36

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

     64MB       (1) 8M x 36   (1) 8M x 36        NONE          NONE

     72MB       (1) 8M x 36   (1) 8M x 36        NONE          NONE

     80MB       (1) 8M x 36   (1) 8M x 36        NONE          NONE

     96MB       (1) 8M x 36   (1) 8M x 36    (1) 4M x 36    (1) 4M x 36

    128MB       (1) 8M x 36   (1) 8M x 36    (1) 8M x 36    (1) 8M x 36

   CPU SPEED CONFIGURATION

  Speed      J5        J7

  25MHz     Closed    Open

  33MHz     Open     Closed

          VIDEO MEMORY CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (4) 256K x 4       NONE

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

[Image]

                                CONNECTIONS

  Purpose                  Location      Purpose               Location

  SCSI connector             CN18        32-bit PCI slot      PCI1 & PCI2

[Image]

                                CONNECTIONS

  Purpose               Location     Purpose                   Location

  Narrow SCSI port         CN1       Thermal monitoring           CN5
  (A)                                board port

  Narrow SCSI port         CN2       Power connector (B)          CN6
  (B)

  Wide SCSI port (A)       CN3       Power connector (A)          CN7

  Wide SCSI port (B)       CN4       SCSI connector               CN8

            SCSI DSA HOST ADAPTER CONFIGURATION (DUAL CHANNEL)

  SCSI ID (Bus A        Switch        Bus B ID (SW1)     Bus A ID (SW2)
       & B)

   Bay A = ID4        SW1 & 2/0             On                 On

   Bay B = ID1        SW1 & 2/1             Off                Off

   Bay C = ID2        SW1 & 2/2             Off                Off

   Bay D = ID3        SW1 & 2/3             On                 On

           SCSI DSA HOST ADAPTER CONFIGURATION (SINGLE CHANNEL)

   SCSI ID (Bus      SCSI ID       Switch        Bus B ID      Bus A ID
       A)           (Bus B)                       (SW1)         (SW2)

     Bay A =         Bay A =     SW1 & 2/0         On            Off
    disabled          ID4

   Bay B = ID1       Bay B =     SW1 & 2/1         On            Off
                      ID5

   Bay C = ID2       Bay C =     SW1 & 2/2         Off           Off
                      ID6

   Bay D = ID3       Bay D =     SW1 & 2/3         On             On
                      ID7

          SCSI NON DSA HOST ADAPTER CONFIGURATION (DUAL CHANNEL)

  SCSI ID (Bus A        Switch        Bus B ID (SW1)     Bus A ID (SW2)
       & B)

   Bay A = ID0        SW1 & 2/0             Off                Off

   Bay B = ID1        SW1 & 2/1             Off                Off

   Bay C = ID2        SW1 & 2/2             Off                Off

   Bay D = ID3        SW1 & 2/3             Off                Off

         SCSI NON DSA HOST ADAPTER CONFIGURATION (SINGLE CHANNEL)

   SCSI ID (Bus      SCSI ID       Switch        Bus B ID      Bus A ID
       A)           (Bus B)                       (SW1)         (SW2)

   Bay A =ID4        Bay A =     SW1 & 2/0         Off            On
                      ID0

   Bay B = ID5       Bay B =     SW1 & 2/1         Off            On
                      ID1

   Bay C = ID6       Bay C =     SW1 & 2/2         Off           Off
                      ID2

     Bay D =         Bay D =     SW1 & 2/3         Off           Off
    disabled          ID3

[Image]

                                CONNECTIONS

  Purpose                   Location     Purpose                Location

  Manufacturers               CN1       Fan connector            CN9
  connection

  Panel connector              CN2       Fan connector            CN10

  Speaker                      CN3       SCSI connector (A)       CN11

  Temp connector               CN4       SCSI connector (B)       CN12

  Temp connector               CN5       Power connector          CN13

  Temp connector               CN6       Server management        CN14
                                         connector

  Temp connector               CN7       Main board               CN15
                                         connector

  Fan connector                CN8       Test connector           CN16

                     THERMAL MONITORING BOARD SWITCHES

  Thermal monitoring board installed                 Jumper

                SW1/0                                  On

                SW1/1                                  On

                SW1/2                                  On

                SW1/3                                 Off

                SW2/0                                  On

                SW2/1                                  On

                SW2/2                                  On

                SW2/3                                 Off

