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Technical Specifications

Dell™ Dimension™ XPS Systems Service Manual

Processor
Microprocessor type	Intel® Pentium® 4 processor 520, 530, 540, 550, or 560 with HT Technology NOTE: Not all Pentium 4 processors support Hyper-Threading technology.
Level 1 (L1) cache	16 KB
Level 2 (L2) cache	1-MB pipelined-burst, eight-way set associative, write-back SRAM

Memory
Type	400- and 533-MHz DDR2 unbuffered SDRAM
Memory connectors	4
Memory capacities	128-, 256-, 512-, or 1-GB non-ECC
Minimum memory	256 MB
Maximum memory	4 GB NOTE: See "Addressing Memory With 4-GB Configurations" for the amount of memory available to the operating system.
BIOS address	F0000h

Computer Information
Chipset	Intel 925X Express
DMA channels	eight
Interrupt levels	24
BIOS chip (NVRAM)	4-Mb
NIC	Integrated network interface capable of 10/100/1000 communication.
System clock	800-MHz data rate

Video
Type	PCI Express

Expansion Bus
Bus type	PCI 2.3 PCI Express x1 and x16
Bus speed	PCI: 33 MHz PCI Express:     x1 slot bidirectional speed — 500 MB/s     x16 slot bidirectional speed — 8 GB/s
PCI
connector	four
connector size	120 pins
connector data width (maximum)	32 bits
PCI Express
connectors	one x1
connector size	36 pins
connector data width (maximum)	1 PCI Express lane
PCI Express
connectors	one x16
connector size	164 pins
connector data width (maximum)	16 PCI Express lanes

Drives
Externally accessible:
	two 3.5-inch drive bays two 5.25-inch drive bays
Available devices	Serial ATA drive, floppy drive, USB memory devices, CD drive, CD-RW drive, DVD drive, DVD-RW drive, and DVD and CD-RW combo drive
Internally accessible:
	two bays for 1-inch high hard drives

Connectors
External connectors:
Serial	9-pin connector; 16550C-compatible
Parallel	25-hole connector (bidirectional)
IEEE 1394	front-panel 6-pin serial connector
Video	15-hole connector
Network adapter	RJ45 connector
PS/2 (keyboard and mouse)	two 6-pin mini-DIN
USB	two front-panel and six back-panel USB 2.0–compliant connectors
Audio	five connectors for line-in, line-out, microphone, surround, and center/Low Frequency Effects (LFE) channel; two front-panel connectors for headphones and microphones
System board connectors:
Primary IDE drive	40-pin connector on PCI local bus
Serial ATA	four 7-pin connectors
Floppy drive	34-pin connector
Fan	5-pin connector
PCI 2.3	four 120-pin connectors
PCI Express x1	36-pin connector
PCI Express x16	164-pin connector
Telephony (TAPI)	4-pin connector

Controls and Lights
Power control	push button
Power light	green light — Blinking green in sleep state; solid green for power-on state amber light — Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (See "Power Lights.")
Hard-drive access light	green
Link integrity light (on integrated network adapter)	green light — A good connection exists between a 10-Mbps network and the computer. orange light — A good connection exists between a 100-Mbps network and the computer. yellow light — A good connection exists between a 1 GB (or 1000-Mbps) network and the computer. off (no light) — The computer is not detecting a physical connection to the network.
Activity light (on integrated network adapter)	yellow blinking light
Diagnostic lights	four lights on the back panel (See "Diagnostic Lights.")
Standby power light	AUX_PWR on the system board
Case backlight	color options: off (no light), ruby, emerald, sapphire (default), amber, amethyst, topaz, diamond.

Power
DC power supply:
Wattage	460 W
Heat dissipation	931.2 BTU/hr
Voltage (see the safety instructions located in the Product Information Guide for important voltage setting information)	fixed-voltage power supply — 110 V at 50/60 Hz manual selection and auto-sensing power supplies — 90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz; 100 V at 50/60 Hz for Japanese computers
Backup battery	3-V CR2032 lithium coin cell

Physical
Height	49.1 cm (19.3 inches)
Width	22.2 cm (8.7 inches)
Depth	48.8 cm (19.2 inches)
Weight	19 kg (42 lbs)

Environmental
Temperature:
Operating	10° to 35°C (50° to 95°F) NOTE: At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).
Storage	–40° to 65°C (–40° to 149°F)
Relative humidity	20% to 80% (noncondensing)
Maximum vibration:
Operating	0.25 G at 3 to 200 Hz at 0.5 octave/min
Storage	0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock:
Operating	bottom half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec)
Storage	27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec)
Altitude:
Operating	–15.2 to 3048 m (–50 to 10,000 ft)
Storage	–15.2 to 10,668 m (–50 to 35,000 ft)

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