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Specifications

Dell™ Dimension™ E520 Service Manual

Processor
Processor type	Intel® Pentium® 4 Intel® Pentium® D Intel® Core™ 2 Duo NOTE: Not all Pentium 4 processors support Hyper-Threading technology.
Level 1 (L1) cache	32 KB
Level 2 (L2) cache	1 MB for Pentium 4 5XX processors (with Hyper Threading) 2 MB for Pentium 4 6XX processors (with Hyper Threading) 2 x 2 MB for Pentium D 9XX processors (with dual core) 2 x 1 MB for Pentium D 8XX processors (with dual core) 256K for Celeron® D 3XX processors 2 MB for Intel Core™ E6400 processors and earlier 4 MB for Intel Core™ E6600 processors and later

Memory
Type	533-MHz, 667-MHz, and 800-MHz dual DDR2 unbuffered SDRAM
Memory connectors	four
Memory capacities	256 MB, 512 MB, or 1 GB non-ECC
Maximum memory	4 GB NOTE: See Addressing Memory With 4-GB Configurations to verify the amount of memory available to the operating system.
BIOS address	F0000h

Computer Information
Chipset	Intel G965 Express Chipset
RAID Support	RAID 1 (Mirroring)
DMA channels	eight
Interrupt levels	24
BIOS chip (NVRAM)	4 MB
NIC	integrated network interface capable of 10/100 communication
System clock	533-MHz, 800-MHz, or 1066-MHz data rate

Video
Type	integrated Intel® Graphics Media Accelerator X3000 (Intel® GMA X3000) PCI Express

Audio
Type	Sigmatel 9227

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
connectors	two
connector size	120 pins
connector data width (maximum)	32 bits
PCI Express
connector	one x1
connector size	36 pins
connector data width (maximum)	1 PCI Express lane
PCI Express
connector	one x16
connector size	164 pins
connector data width (maximum)	16 PCI Express lanes

Drives
Externally accessible:
Bays	two 5.25-inch drive bays one 3.5-inch drive bay (FlexBay)
Available devices	Serial ATA drives (4), floppy drive, USB memory devices, CD/DVD drive, and Media Card Reader
Internally accessible:	two bays for 1-inch high serial ATA hard drives

Connectors
External connectors:
Video	15-hole connector
Network adapter	RJ-45 connector
USB	two front-panel and six back-panel USB 2.0-compliant connectors
Audio	six connectors for 7.1 support
System board connectors:
Serial ATA (SATA)	four 7-pin connectors
FlexBay Drive	one USB 10-pin header (with one pin removed for keying) for optional Media Card Reader (3.5-inch bay device)
Floppy drive	one 34-pin connector
Fan	one 5-pin connector
PCI 2.3	two 120-pin connectors
PCI Express x1	one 36-pin connector
PCI Express x16	one 164-pin connector

Controls and Lights
Power button	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 the power supply inside the computer. If the system cannot boot and there is a solid amber light, a problem with the system board may exist (see Power Lights).
Hard drive access light	green
Link integrity light (on integrated network adapter)	green light — A good connection exists between the 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 front panel (see Diagnostic Lights)
Standby power light	STBYLED on the system board

Power
DC power supply:
Wattage	305 W
Maximum heat dissipation	1040 BTU/hr
Voltage (see the safety instructions located in the Product Information Guide for important voltage setting information)	Manually selectable: 90 to 135 V and 180 to 265 V at 50/60 Hz
Backup battery	3-V CR2032 lithium coin cell

Physical
Height	41.4 cm (16.3 inches)
Width	18.8 cm (7.4 inches)
Depth	45.7 cm (18.0 inches)
Weight	12.7 kg (28.0 lb)

Environmental
Temperature:
Operating	10° to 35°C (50° to 95°F)
Storage	–40° to 65°C (–40° to 149°F)
Relative humidity	20% to 80% (noncondensing)
Maximum vibration:
Operating	5 to 350 Hz at 0.0002 G2/Hz
Storage	5 to 500 Hz at 0.001 to 0.01 G2/Hz
Maximum shock:
Operating	40 G +/- 5% with pulse duration of 2 msec +/- 10% (equivalent to 20 in/sec [51 cm/sec])
Storage	105 G +/- 5% with pulse duration of 2 msec +/- 10% (equivalent to 50 in/sec [127 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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