Before You Begin 9
1
Before You Begin
This manual provides
instructions
for removing and installing components in
your computer. Unless otherwise noted, each procedure assumes that the
following conditions exist:
• You have performed the steps in "Turning Off Your Computer" on page 9
and "Before Working Inside Your Computer" on page 10.
• You have read the safety information that shipped with your computer
.
• A component can be replaced or—if purchased separately—installed by
performing the removal procedure in the reverse order.
Recommended Tools
The procedures in this document may require the following tools:
•Phillips screwdriver
• Small flat-blade screwdriver
•Plastic scribe
• BIOS executable update program available at
support.dell.com
Turning Off Your Computer
CAUTION: 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 all open files and exit all open programs.
2
Click
Start
and then click
Shut Down
. The computer turns off after
the operating system shutdown process is complete.
3
Ensure that the computer is turned off. If your computer did not
automatically turn off when you shut down the operating system, press
and hold the power button until the computer turns off.
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