Manuals

Manuals
Specifications: Dell Dimension E521 Service Manual

Back to Contents Page

Specifications

Dell™ Dimension™ E521 Service Manual


Processor

Processor type

AMD Athlon™ 64 X2 dual-core processor
AMD Athlon 64 processor
AMD Sempron™ processor

Level 2 (L2) cache

Up to 1 MB per core
Up to 256 KB for Sempron processors

Memory

Type

533-MHz, 667-MHz, 800-MHz (when available) DDR2 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.

Computer Information 

Chipset

Nvidia GeForce 6150LE

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

Video

Type

Nvidia integrated video (DirectX 9.0 Shader Model 3.0 Graphics Processing Unit) or optional PCI Express x16 graphics card

Audio

Type

Sigmatel 9227 CODEC (7.1 Channel audio)

Expansion Bus 

Bus type

PCI 2.3
PCI Express 1.0A
SATA 1.0 and 2.0
USB 2.0

Bus speed

PCI: 133 MB/s

PCI Express:

x1 slot bidirectional speed - 500 MB/s

x16 slot bidirectional speed - 8 GB/s

SATA: 1.5 Gbps and 3.0 Gbps
USB: 480 Mbps high speed, 12 Mbps full speed, 1.2 Mbps low speed

PCI

 

connectors

two

connector size

124 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

one 3.5-inch drive bay (FlexBay)

two 5.25-inch drive bays

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 four back-panel USB 2.0-compliant connectors

Audio

six connectors for 7.1 support

System board connectors:

Serial ATA

four 7-pin connectors

Internal USB device

one 10-pin connector (supports two USB ports)

Floppy drive

one 34-pin connector

Fan

one 5-pin connectors

PCI 2.3

two 124-pin connectors

PCI Express x1

one 36-pin connector

PCI Express x16

one 164-pin connector

Front panel

one 40-pin connector

Processor

one 940-pin connector

Memory

four 240-pin connectors

Power 12V

one 4-pin connector

Power

one 24-pin connector

Controls and Lights 

Front of computer:

 

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, this indicates a problem with the system board (see "Power Problems" in your Owner's Manual).

Diagnostic lights

four lights on the front panel (see Diagnostic Lights.)

Standby power light

AUX_PWR_LED on the system board

Hard-drive activity light

green light — When the computer is reading data from or writing data to the hard drive.

LAN indicator light

green light — Solid green indicates that a LAN (local area network) connection is established.

Rear of computer:

 

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.

off (no light) — The computer is not detecting a physical connection to the network.

Network activity light (on integrated network adapter)

yellow blinking light

Power

DC power supply:

Wattage

305 W

Maximum heat dissipation

1041 BTU/hr

NOTE: Heat dissipation is calculated by using the power supply wattage rating.

Voltage (see the safety instructions located in the Product Information Guide for important voltage setting information)

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)


Back to Contents Page

 

*DELL PREFERRED ACCOUNT (DPA): Offered to U.S. residents by WebBank, who determines qualifications for and terms of credit. Promotion eligibility varies and is determined by WebBank. Taxes, shipping, and other charges are extra and vary.

snWEB1