Adding and Replacing Parts 75
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 page75 and "Before
Working Inside Your Computer" on page76.
• 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
• Flash BIOS update program on removable media

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
Shut down the operating system:
a
Save and close any open files, exit any open programs, click the
Start
button, and then
click
Turn Off Computer
.
b
In the
Turn off computer
window, click
Turn of f
.
The computer turns off after the operating system shutdown process finishes.
2
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 4 seconds.