Before You Begin; Recommended Tools; Turning Off Your Computer - Dell optiplex 755 Quick Reference Manual

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 13
and "Mini Tower Computer" on page 16.
• You have read the safety information in your Dell™ Product Information
Guide.
• A component can be replaced 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 floppy disk or 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:
Save and close all open files and exit all open programs.
a
In the Microsoft
b
Down→ Shut down.
In the Microsoft
Windows Vista Start Button
desktop, click the arrow in the lower-right corner of the Start menu as
shown below, and then click Shut Down.
The computer turns off after the operating system shutdown process is
complete.
® ®
Windows XP operating system, click Start→ Shut
®
Windows Vista™ operating system, click the
, in the lower-left corner of the
Quick Reference Guide
13