Dell Inspiron 1521 (Mid 2007) - Manual (Page 141)

Adding and Replacing Parts
141
Adding and Replacing Parts
Before You Begin
This chapter provides procedures for removing and installing the 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 141
and "Before Working Inside Your Computer" on page 142.
• You have read the safety information in your Dell Product Information
Guide.
• A component can be replaced—or if purchased separately—installed by
performing the removal procedure in reverse order.
Recommended Tools
The procedures in this document may require the following tools:
• Small flat-blade screwdriver
• Phillips screwdriver
• Small plastic scribe
• Flash BIOS update (see the Dell Support website at support.dell.com)
Turning Off Your Computer
NOTICE:
To avoid losing data, save and close any open files and exit any 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 at
least 8 to 10 seconds until the computer turns off.