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Dell Dimension E520 Service Manual
Dell™ Dimension™ E520 Service Manual
Before You Begin
About Your Computer
Technical Overview
Specifications
Advanced Troubleshooting
System Setup
Removing and Installing Parts
Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the
problem.
CAUTION: A CAUTION indicates a potential for pr
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Before You Begin: Dell Dimension E520 Service Manual Back to Contents Page Before You Begin Dell™ Dimension™ E520 Service Manual Getting Started Recommended Tools Turning Off Your Computer Before Working Inside Your Computer Getting Started This manual provides procedures for removing and replacing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: You have performed the steps in Turning Off Your Computer and Before Worki
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Before You Begin: Dell Dimension E520 Service Manual Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own personal safety. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a
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About Your Computer: Dell Dimension E520 Service Manual Back to Contents Page About Your Computer Dell™ Dimension™ E520 Service Manual Front View of the Computer Back View of the Computer Back Panel Connectors Front View of the Computer 1 Service Use the Service Tag to identify your computer when you access the Dell Tag Support website or contact support. 2 cover Use this latch to remove the cover. release latch 3 CD or DVD The CD or DVD drive light is on when the computer reads data from
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About Your Computer: Dell Dimension E520 Service Manual drive 6 vents For adequate cooling, do not block any of the vents. NOTICE: Ensure that there is a minimum of two inches of space between all vents and any objects near the vents. NOTICE: Keep the vent area clean and dust-free to ensure that the system is adequately ventilated. Use only a dry cloth to clean the vent area to avoid water damage to the system. 7 USB 2.0 Use the front USB connectors for devices that you connect occasionally, suc
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About Your Computer: Dell Dimension E520 Service Manual 1 power Insert the power cable. connector 2 back I/O Plug USB, network, VGA monitor, and audio devices into the appropriate ). connectors connectors (see Back Panel Connectors 3 card slots (4) Access connectors for installed PCI or PCI Express cards. Back Panel Connectors 1 link integrity Green — A good connection exists between a 10-Mbps network light and the computer. Orange — A good connection exists between a 100-Mbps network and the co
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About Your Computer: Dell Dimension E520 Service Manual Use the network adapter connector to attach your computer to a network or broadband device. Connect one end of a network cable to either a network jack or your network or broadband device, and then connect the other end of the network cable to the network adapter connector on your computer. A click indicates that the network cable has been securely attached. On computers with an additional network card, use the connectors on the card and on
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About Your Computer: Dell Dimension E520 Service Manual 12 VGA connector Use the integrated video connector to attach your video monitor (optional). On computers with a video card, use the connector on the card. Back to Contents Page file:///T|/htdocs/systems/dimE520/en/SM_EN/about.htm[10/16/2012 1:04:38 PM]
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Technical Overview: Dell Dimension E520 Service Manual Back to Contents Page Technical Overview Dell™ Dimension™ E520 Service Manual Inside View of Your Computer System Board Components Power Supply DC Connector Pin Assignments Inside View of Your Computer 1 power supply 2 system board 3 hard drive 4 floppy drive (optional) or media card reader (optional) 5 CD or DVD drive System Board Components file:///T|/htdocs/systems/dimE520/en/SM_EN/techov.htm[10/16/2012 1:04:43 PM]
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Technical Overview: Dell Dimension E520 Service Manual 1 CPU fan connector 2 processor and heat sink connector 3 processor power connector 4 memory module 5 battery socket (BATTERY) 6 SATA Connectors connectors SATA0 and SATA1 7 front panel I/O 8 main power connector 9 SATA connectors connector SATA4 and SATA5 10 FlexBay USB 11 clear CMOS jumper (CLRCMOS) 12 password jumper connector (CLRPSWD) 13 PCI Express x16 14 PCI Express x1 card connector 15 PCI card connector card connector 16 floppy driv
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Technical Overview: Dell Dimension E520 Service Manual DC Power Connector P1 Pin Number Signal Name Color Wire Gauge 1 +3.3 VDC Orange 18-AWG 2 +3.3 VDC Orange 18-AWG 3 COM Black 18-AWG 4 +5 VDC Red 18-AWG 5 COM Black 18-AWG 6 +5 VDC Red 18-AWG 7 COM Black 18-AWG 8 POK Gray 18-AWG 9 +5 VFP Purple 18-AWG file:///T|/htdocs/systems/dimE520/en/SM_EN/techov.htm[10/16/2012 1:04:43 PM]
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Technical Overview: Dell Dimension E520 Service Manual 10 +12 VB DC White 18-AWG 11 +12VB DC White 18-AWG 12 +3.3 VDC Orange 18-AWG 13 +3.3 VDC Orange 18-AWG 14 -12 VDC Blue 18-AWG 15 COM Black 18-AWG 16 PS-ON Green 18-AWG 17 COM Black 18-AWG 18 COM Black 18-AWG 19 COM Black 18-AWG 20 N/C N/C 18-AWG 21 +5 VDC Red 18-AWG 22 +5 VDC Red 18-AWG 23 +5 VDC Red 18-AWG 24 COM Black 18-AWG DC Power Connector P2 Pin Number Signal Name 18-AWG Wire 1 COM Black 2 COM Black 3 +12 VA DC Yellow 4 +12 VA DC Yell
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Technical Overview: Dell Dimension E520 Service Manual 4 COM Black 5 +12 VB DC White DC Power Connector P7 Pin Number Signal Name 18-AWG Wire 1 +5 VDC Red 2 COM Black 3 COM Black 4 +12 A VDC Yellow DC Power Connector P10 Pin Number Signal Name 18-AWG Wire 1 +12 VA DC Yellow 2 COM Black 3 COM Black 4 +5V DC Red NOTE: The P10 connector is intended for use with PCI Express graphics cards that have power requirements exceeding 75 watts. Back to Contents Page file:///T|/htdocs/systems/dimE520/en/SM
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Specifications: Dell Dimension E520 Service Manual Back to Contents Page 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
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Specifications: Dell Dimension E520 Service Manual 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 con
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Specifications: Dell Dimension E520 Service Manual 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 devic
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Specifications: Dell Dimension E520 Service Manual Maximum heat dissipation 1040 BTU/hr Voltage (see the safety instructions Manually selectable: 90 to 135 V and 180 located in the Product Information to 265 V at 50/60 Hz Guide for important voltage setting information) 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) Sto
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Advanced Troubleshooting: Dell Dimension E520 Service Manual Back to Contents Page Advanced Troubleshooting Dell™ Dimension™ E520 Service Manual Power Lights Diagnostic Lights Beep Codes System Messages Dell Diagnostics Drivers Resolving Software and Hardware Incompatibilities Power Lights CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. The power button light located on the front of the computer illu
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Advanced Troubleshooting: Dell Dimension E520 Service Manual Diagnostic Lights CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide. To help you troubleshoot a problem, your computer has four lights labeled 1, 2, 3, and 4 on the front panel (see Front View of the Computer). When the computer starts normally, the lights flash before turning off. If the computer malfunctions, the sequence of the lights helps to identify
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Advanced Troubleshooting: Dell Dimension E520 Service Manual compatibility error has (see Memory). occurred. If the problem persists, contact Dell (see "Contacting Dell" in your Owner's Manual). A possible expansion card 1. Determine if a conflict exists by removing an expansion card (not a failure has occurred. graphics card) and restarting the computer (see Cards). 2. If the problem persists, reinstall the card you removed, then remove a different card and restart the computer. 3. Repeat this
