Dell E521 specifications Installing a CD/DVD Drive

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1	power cable	2	data cable

5.Slide the drive latch release toward the bottom of the computer and, without releasing the drive latch release, slide the CD/DVD drive out through the front of the computer.

6.If you are not replacing the drive, replace the drive panel insert (see Installing the Drive-Panel Insert).

7.Replace the drive panel (see Installing the Drive Panel).

1	drive release latch	2	sliding plate	3	CD/DVD drive

8.Replace the computer cover (see Installing the Computer Cover).

9.Connect your computer and devices to electrical outlets, and then turn them on.

10.Configure the drives in System Setup (see Entering System Setup).

Installing a CD/DVD Drive

NOTE: In the event that the replacement or new CD/DVD drive does not have shoulder screws, check for the screws located within the drive panel insert or, if applicable, reuse screws attached to the drive that you are replacing.

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Contents Model Dcsm About Your Computer Front View of the ComputerBack Panel Connectors Back View of the ComputerBack to Contents Advanced Troubleshooting Power LightsDiagnostic Lights Light Pattern Problem Description Suggested ResolutionBeep Codes System MessagesCode Cause Click the Change or Remove Program icon Diskette read failureDell Diagnostics Starting the Dell DiagnosticsDell Diagnostics Main Menu What Is a Driver?Drivers Identifying DriversReinstalling Drivers Using Windows XP Device Driver RollbackManually Reinstalling Drivers Windows XPResolving Software and Hardware Incompatibilities Click Start, then click Help and SupportBefore You Begin Getting StartedRecommended Tools Turning Off Your ComputerBack to Contents Removing and Installing Parts Removing the Computer CoverMemory Installation Guidelines MemoryAddressing Memory With 4-GB Configurations Installing MemoryCards Removing MemoryInstalling a PCI Card PCI CardsPage Removing a PCI Card Installing a PCI Express Card PCI Express CardsPage Removing a PCI Express Card Drive Panel Removing the Drive PanelInstalling the Drive-Panel Insert Installing the Drive PanelRemoving the Drive-Panel Insert Connecting Drive Cables DrivesDrive Interface Connectors Connecting and Disconnecting Drive CablesHard Drive Installing a Hard Drive Removing a Hard DrivePage Floppy Drive Adding a Second Hard DriveRemoving a Floppy Drive Installing a Floppy Drive Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader CD/DVD Drive Removing a CD/DVD DriveInstalling a CD/DVD Drive Page Battery Power SupplyReplacing the Battery Replacing the Power Supply Processor Removing the ProcessorInstalling the Processor Page Panel Removing the I/O PanelInstalling the I/O Panel Processor FanRemoving the Processor Fan Installing the Processor Fan System Board Removing the System BoardSystem Board Screws Installing the Computer Cover Installing the System BoardBack to Contents September 2006 Rev. A00 Specifications Connectors DrivesControls and Lights Power PhysicalEnvironmental System Setup Entering System SetupSystem Setup Screen OverviewSystem Setup Options Onboard DevicesBypass is Not SetUnlocked Boot Sequence Option SettingsChanging Boot Sequence for the Current Boot Setup & Boot MenuClearing Forgotten Passwords Changing Boot Sequence for Future BootsClearing Cmos Settings Flashing the BiosClick Save this program to disk, and then click OK Technical Overview Inside View of Your ComputerSystem Board Components Power Supply DC Connector Pin Assignments Pin Number Signal name AWG WireDC Power Connector P2 DC Power Connector P10