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 |

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 board interface | J13 |
VGA port | CN5 | Speaker | J14 |
Floppy drive interface | CN6 | External battery | J15 |
IDE interface | CN7 | Riser Card | SL1 |
VGA feature connector | CN8 | External cache card | SL2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | J1 | Closed |
» | Integrated SCSI host adapter terminated | J2 | Closed |
Integrated SCSI host adapter not terminated | J2 | Open | |
» | EISA configuration settings retained at next system boot | J3 | Open |
EISA configuration settings not retained at next system boot | J3 | Closed | |
» | Factory configured - do not alter | J4 | Closed |
» | Factory configured - do not alter | J6 | Closed |
» | Factory configured - do not alter | J8 | Closed |
» | Factory configured - do not alter | J9 | Closed |
» | Factory configured - do not alter | J16 | Closed |
» | 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 - 26Fh) | SW1/3 | On |
I/O controller address (398h -399h) | SW1/3 | Off | |
» | Flash BIOS write protect enabled | SW1/4 | On |
Flash BIOS write protect enabled | SW1/4 | Off | |
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 |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
SCSI connector | CN18 | 32-bit PCI slot | PCI1 & PCI2 |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Narrow SCSI port (A) | CN1 | Thermal monitoring board port | CN5 |
Narrow SCSI port (B) | CN2 | Power connector (B) | CN6 |
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 & B) | Switch | Bus B ID (SW1) | Bus A ID (SW2) |
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 A) | SCSI ID (Bus B) | Switch | Bus B ID (SW1) | Bus A ID (SW2) |
Bay A = disabled | Bay A = ID4 | SW1 & 2/0 | On | Off |
Bay B = ID1 | Bay B = ID5 | SW1 & 2/1 | On | Off |
Bay C = ID2 | Bay C = ID6 | SW1 & 2/2 | Off | Off |
Bay D = ID3 | Bay D = ID7 | SW1 & 2/3 | On | On |
SCSI NON DSA HOST ADAPTER CONFIGURATION (DUAL CHANNEL) | |||
SCSI ID (Bus A & B) | Switch | Bus B ID (SW1) | Bus A ID (SW2) |
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 A) | SCSI ID (Bus B) | Switch | Bus B ID (SW1) | Bus A ID (SW2) |
Bay A =ID4 | Bay A = ID0 | SW1 & 2/0 | Off | On |
Bay B = ID5 | Bay B = ID1 | SW1 & 2/1 | Off | On |
Bay C = ID6 | Bay C = ID2 | SW1 & 2/2 | Off | Off |
Bay D = disabled | Bay D = ID3 | SW1 & 2/3 | Off | Off |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Manufacturer’s connection | CN1 | Fan connector | CN9 |
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 connector | CN14 |
Temp connector | CN7 | Main board connector | CN15 |
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 |