This section provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:
You have read the safety information in the Dell Product Information Guide.
A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverse order.
Recommended Tools
The procedures in this document may require the following tools:
Small flat-blade screwdriver
Phillips screwdriver
Small plastic scribe
5-mm Hex-nut driver
Flash BIOS update program CD
Before Working Inside Your Computer
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.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: 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 processor, by its edges, not by its pins.
NOTICE: When disconnecting a cable, pull on the cable's connector or on its strain-relief loop, not on the cable itself. Some cables have connectors with locking tabs; before disconnecting this type of cable, press inward on the locking tabs to release the connector. When connecting or disconnecting a cable, ensure that the connectors are correctly oriented and aligned to avoid damage to the connector and/or the connector's pins.
Ensure that the work surface is flat and clean to prevent the computer cover from being scratched.
NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your computer.
Save and close any open files, exit any open programs, then shut down the operating system and turn
off all attached devices:
Windows Vista: Click Start , click the arrow icon, and then click Shut Down.
Windows XP: Start®Shut Down®Shut down.
The computer turns off after the operating system shutdown process finishes.
NOTE: Ensure that the computer is off and not in a power management mode. If you cannot shut down the computer using the operating system, press and hold the power button for 4 seconds.
Disconnect your computer and all attached devices from their electrical outlets.
NOTICE: To disconnect a network cable, first unplug the cable from your computer, and then unplug it from the network device.
Disconnect all external cables from the computer.
Close the display and turn the computer upside down on a flat work surface.
NOTICE: To help prevent damage to the system board, remove the main battery before working inside the computer.
Slide and hold the battery latch on the bottom of the computer, then lift the battery out of the battery
bay.
, click the arrow 
