CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in Dell's product documentation, or as directed by
Dell's online or telephone service and support team. Damage due to servicing that is not authorized by
Dell is not covered by your warranty. Read and follow the safety instructions that came with the
product.
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.
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 microprocessor
by its edges, not by its pins.
NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside
the computer.
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 computer operating system, press and hold the power button for 4 seconds.
If the computer is connected to a docking device, undock it.
Disconnect the computer from the electrical outlet.
To avoid possible damage to the system board, wait 10 to 20 seconds and then disconnect any
attached devices.
Disconnect all other 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 you service the
computer.
Slide and hold the battery-bay latch release on the bottom of the computer, and then remove
the battery from the bay.
Recommended Tools
The procedures in this manual require the following tools:
#1 Phillips screwdriver
¼-inch flat-blade screwdriver
Small plastic scribe
Flash BIOS update program (see the Dell Support website at support.dell.com)
Computer Orientation
1
back
2
right
3
front
4
left
Screw Identification
When you are removing and replacing components, photocopy "Screw Identification" as a tool to lay out and keep track of the screws. The placemat provides the number of screws and their sizes.
