Dell C521 specifications Removing the Processor

Page 24

To replace the battery:

1.Record all of the settings in system setup (see System Setup Options) so that you can restore the correct settings in step 8.

2.Follow the procedures in Before You Begin.

3.Locate the battery socket.

4.Remove the battery by carefully pressing the battery release lever away from the battery.

When the battery release lever is properly pressed, the battery should spring out of the socket.

1

battery

2

battery release lever

3

battery socket

 

 

 

 

 

 

5.Insert the new battery into the socket with the side labeled "+" facing up, and snap the battery into place.

6.Replace the computer cover. See Replacing the Computer Cover.

NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug it into the computer.

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

8.Enter system setup (see System Setup) and restore the settings you recorded in step 1.

The system will log a low battery event in the event log. You can clear the log event from System Setup.

9.Properly dispose of the old battery. See the Product Information Guide for battery disposal information.

Processor

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

Removing the Processor

1.Follow the procedures in Before You Begin.

2.Loosen the captive screw on each side of the heat sink assembly.

CAUTION: Despite having a plastic shield, the heat sink assembly may be very hot during normal operation. Be sure that it has had sufficient time to cool before you touch it.

NOTICE: To avoid damaging the processor or processor socket, slide the heat sink assembly forward and backwards to break the thermal grease seal between the processor and heat sink. If you do not break the seal first, the processor may stick to the heat sink assembly while rotating the assembly upward.

3. Rotate the heat sink assembly upward, and remove the assembly from the computer.

Lay the heat sink assembly down on its top, with the thermal grease facing upward.

Image 24
Contents September 2006 Rev. A00 About Your Computer Front ViewBack Panel I/O Connectors Back View of the ComputerBack to Contents Before You Begin Getting StartedRecommended Tools Turning Off Your ComputerPage Replacing the Computer Cover Removing the Computer Cover Removing and Installing Parts MemoryDDR2 Memory Overview Installing Memory Cards Removing MemoryInstalling an Expansion Card Removing an Expansion Card Drives General Installation Guidelines Drive Interface ConnectorsPower Cable Connector Connecting and Disconnecting Drive CablesInstalling a CD/DVD Drive CD/DVD DriveRemoving a CD/DVD Drive Floppy Drive Removing a Floppy DriveInstalling a Floppy Drive Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader Hard Drive Removing a Hard DriveInstalling a Hard Drive Battery Replacing the BatteryProcessor Removing the ProcessorInstalling the Processor Page Power Supply Replacing the Power SupplyFront I/O Panel Removing the Front I/O PanelFan Assembly Installing the Front I/O PanelRemoving the Fan Assembly Installing the Fan Assembly System BoardRemoving the System Board Replacing the System Board Page Specifications Connectors DrivesControls and Lights Power PhysicalEnvironmental System Setup Entering System SetupOverview OverviewSystem Setup Options System64MB Boot Menu Post BehaviorClearing Forgotten Passwords and Cmos Settings Jumper Locations Clearing Password SettingsFlashing the Bios Clearing Cmos SettingsTechnical Overview Inside View of Your ComputerSystem Board Components Jumper Settings Jumper Setting DescriptionPower Supply DC Connector Pin Assignments DC Power Connector P1Pin Number Signal name AWG Wire DC Power Connector P2 DC Power Connector P3DC Power Connector P4 DC Power Connector P5 and P6Black +12 VDC Yellow September 2006 Rev. A00 Troubleshooting Dell DiagnosticsWhen to Use the Dell Diagnostics Dell Diagnostics Main MenuDiagnostic Lights Power Light Problem Description Suggested ResolutionProblem Description Suggested Resolution System LightsBeep Codes Code Cause