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104 Removing and Installing Parts
Turning Off Your Computer
NOTICE: To avoid losing data, save and close all open files and exit all open
programs before you turn off your computer.
1
Save and close any open files and exit any open programs.
2
Click Start , click the arrow
,
and then click
Shut Down
.
The computer turns off after the operating system shutdown process finishes.
3
Ensure that the computer and any attached devices are turned off. If your
computer and attached devices did not automatically turn off when you
shut down your operating system, press and hold the power button for
atleast 8-10 seconds until the computer turns off.
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from
potential damage and to help to 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: 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: 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: When you disconnect a cable, pull on its connector or on its pull-tab,
not on the cable itself. Some cables have connectors with locking tabs; if you are
disconnecting this type of cable, press in on the locking tabs before you disconnect
the cable. As you pull connectors apart, keep them evenly aligned to avoid bending
any connector pins. Also, before you connect a cable, ensure that both connectors
are correctly oriented and aligned.
NOTICE: To disconnect a network cable, first unplug the cable from your computer
and then unplug the cable from the network device.
1
Disconnect all telephone or network cables from the computer.
NOTICE: To avoid damaging the system board, you must remove the main battery
before you service the computer.
2
Disconnect your computer and all attached devices from their electrical outlets.
book.book Page 104 Monday, October 6, 2008 11:38 AM