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Before You Begin
This manual provides instructions 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 13 and "Safety Instructions" on page 14.
•You have read the safety information that shipped with your computer.
•A component can be replaced
Technical Specifications
For information on technical specifications of your computer, see the Setup Guide at support.dell.com/manuals.
Recommended Tools
The instructions in this document may require the following tools:
•Small
•Small Phillips 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.
1Save and close all open files and exit all open programs.
2To shut down the operating system, click Start 
and then click Shut Down.
Before You Begin
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