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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 161 and "Before Working Inside Your Computer" on page 162.

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.

1Save and close all open files and exit all open programs.

2Shut down the operating system: Windows® XP:

Click StartShut DownShut down.

Adding and Replacing Parts

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Dell PP22L owner manual Adding and Replacing Parts, Before You Begin, Recommended Tools, Turning Off Your Computer, 161