Dell E520 service manual Addressing Memory With 4-GB Configurations, Installing Memory

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Removing and Installing Parts: Dell Dimension E520 Service Manual

1Channel A: matched pair of memory modules in connectors DIMM_1 and DIMM_2 (white securing clips)

2Channel B: matched pair of memory modules in connectors DIMM_3 and DIMM_4 (black securing clips)

NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. If possible, do not pair an original memory module with a new memory module. Otherwise, your computer may not start properly. You should install your original memory modules in pairs either in DIMM connectors 1 and 2 or DIMM connectors 3 and 4.

NOTE: Memory purchased from Dell is covered under your computer warranty.

Addressing Memory With 4-GB Configurations

Your computer supports a maximum of 4 GB of memory when you use four 1-GB DIMMs. Current 32-bit operating systems,

such as Microsoft® Windows® XP, can use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than that installed. Certain components within the computer require address space in the 4-GB range. Any address space reserved for these components cannot be used by computer memory.

Installing Memory

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis.

1.Follow the procedures in Before You Begin.

2.Remove the computer cover (see Removing the Computer Cover).

3.Press out the securing clip at each end of the memory module connector.

1 memory connector closest to processor

2 securing clips (2)

3 connector

4. Align the notch on the bottom of the module with the crossbar in the connector.

file:///T/htdocs/systems/dimE520/en/SM_EN/parts.htm[10/16/2012 1:05:24 PM]

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Contents Model Dcta July 2006 Rev. A00 Getting Started Recommended ToolsTurning Off Your Computer Before Working Inside Your ComputerBack to Contents About Your Computer Front View of the ComputerBack View of the Computer Back Panel Connectors Has been securely attached VGA connector Inside View of Your Computer System Board ComponentsPower Supply DC Connector Pin Assignments ClrpswdDC Power Connector P1 Pin Number Signal Name Color Wire GaugeDC Power Connect P3, P5, P8, and P9 DC Power Connector P2Pin Number Signal Name AWG Wire DC Power Connector P7 DC Power Connector P10Memory ProcessorComputer Information Video AudioExpansion Bus DrivesPower ConnectorsControls and Lights Physical EnvironmentalAdvanced Troubleshooting Power LightsDiagnostic Lights Problem Description Suggested ResolutionBeep Codes Code CauseSystem Messages MessagePossible Cause Corrective ActionDell Diagnostics Starting the Dell DiagnosticsOption Function Dell Diagnostics Main MenuTab Function What Is a Driver? Reinstalling DriversDrivers Identifying DriversResolving Software and Hardware Incompatibilities Click Roll Back DriverClick Start, then click Help and Support System Setup Screens Entering System SetupOverview System Setup Options SystemOnboard Devices Boot Sequence Option SettingsChanging Boot Sequence for the Current Boot Changing Boot Sequence for Future BootsClearing Forgotten Passwords Flashing the Bios Clearing Cmos SettingsClick Save this program to disk, and then click OK Back to Contents Removing and Installing Parts Removing the Computer CoverInside View of Your Computer System Board Components Usbback Memory DDR2 Memory OverviewAddressing Memory With 4-GB Configurations Installing MemoryRemoving Memory Cards PCI CardsRelease tab Bracket caught outside of slot Removing a PCI Card Installing a PCI Express Card PCI Express CardsPage Page Removing a PCI Express Card Drive Panel Removing the Drive PanelInstalling the Drive-Panel Insert Removing the Drive-Panel InsertInstalling the Drive Panel DrivesConnecting Drive Cables Drive Interface ConnectorsHard Drive Removing a Hard DriveInstalling a Hard Drive Drive Adding a Second Hard Drive Floppy Drive Removing a Floppy DriveInstalling a Floppy Drive Shoulder screws Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader Reader Media Card Reader Screws CD/DVD Drive Removing a CD/DVD DriveInstalling a CD/DVD Drive Screws Battery Replacing the BatteryPower Supply Removing the Power SupplyInstalling the Power Supply ProcessorRemoving the Processor Processor socket Installing the Processor Panel Panel Components Removing the I/O PanelProcessor Fan Installing the I/O PanelRemoving the Processor Fan Page System Board Installing the Processor FanRemoving the System Board Installing the System Board Replacing the Computer Cover
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