CAUTION: Before you perform 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: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically
touching an unpainted metal surface, such as the back panel on the computer.
NOTICE: Handle components and cards with care. Do not touch the components or contacts on a card.
Instead, hold a card by its edges or by its metal mounting bracket. Hold a component such as a
microprocessor 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 scratching the computer cover.
Save any work in progress and exit all open programs.
Turn off the computer and all attached devices.
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 the computer from the electrical outlet.
NOTICE: To avoid damaging the system board, wait 10 to 20 seconds before disconnecting any attached
devices.
Disconnect all attached devices.
Disconnect all external cables from the computer.
Close the display and turn the computer upside down on a flat work surface.
NOTICE: To avoid damaging the system board, you must remove the main battery before servicing the
computer.
Slide and hold the battery bay latch release on the bottom of the computer, then pull the battery
out of the battery bay.
1
battery
2
battery bay latch release
Recommended Tools
The procedures in this document may require one or more of the following tools:
Small flat-blade screwdriver
Phillips screwdriver
Small plastic scribe
Flash BIOS update (see the Dell support website at support.dell.com)
Computer Orientation
1
front
2
left
3
back
4
right
Screw Identification
The following chart provides the number of screws used to secure the various system components and their corresponding sizes. When removing and replacing components, print the screw identification chart as a placemat to lay out and keep track of the screws.
