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10 Before You Begin
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Preparing to Work Inside the
Computer
NOTICE: Only a certified service technician should perform repairs on your
system. Damage due to servicing that is not authorized by Dell is not covered
by your warranty.
NOTICE: To avoid damaging the computer, perform the following steps before
you begin working inside the computer.
1 Make sure that the work surface is clean to prevent scratching the
computer cover.
2 Save any work in progress and close all open application programs.
3 Turn off the computer and all attached devices.
NOTE: Make sure the computer is turned off and not in suspend-to-disk
or hibernate mode. If you cannot shut down the computer using the
computer’s operating system, press and hold the power button for
4seconds.
4 Make sure the computer is undocked.
5 Disconnect the computer from the electrical outlet.
6 To avoid possible damage to the system board, wait 10 to 20 seconds
and then disconnect any attached devices.
7 Disconnect all other external cables from the computer.
8 Remove any installed PC Cards or plastic blanks from the PC Card
slot.
9 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 and secondary battery (if present) before you service the computer.
10
Remove the primary battery from the battery bay and the secondary
battery from the modular bay, if a secondary battery is in use.
11 Remove any installed device in the modular bay.
12 To dissipate any static electricity while you work, use a wrist grounding
strap or periodically touch an unpainted metal surface.