Adding and Replacing Parts 103
14
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 page103 and "Before Working
Inside Your Computer" on page104.
You have read the safety information in the Dell™
Product I nformat ion Guid e.
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
Small Phillips screwdriver
Small plastic scribe
Hex nut driver
Flash BIOS update program CD

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
Shut down the operating system:
a
Save and close all open files and exit all open programs.
b
In the Microsoft
®
Windows
®
XP operating system
, click
Start
Shut Down
Shut down
.
In Microsoft
®
Windows Vista
®
,
click the Windows Vista Start button, , in the lower-left
corner of the desktop, click the arrow in the lower-right corner of the Start menu as shown
below, and then click
Shut Down
.