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Before You Begin | 7
Before You Begin
Turn Off Your Computer and Connected Devices
CAUTION: To avoid losing data, save and close all open files and exit all open
programs before you turn off your computer.
1 Save and close all open files and exit all open programs.
2 Follow the instructions to shut down your computer based on the operating system
installed
on your computer.
• Windows 8:
Move your mouse pointer to the upper-right or lower-right corner of the screen to
open the Charms sidebar, and then click Settings→ Power→ Shutdown.
• Windows 7:
Click Start and
click Shut down.
Microsoft Windows shuts down and then the computer
turns off.
NOTE: If you a
re using a different operating system, see the documentation
of your operating system for shut-down instructions.
3 Disconnect your computer and all attached dev
ices from their electrical outlets.
4 Disconnect all telephone cables, network cables, and attached devices from your
co
mputer.
5 Press and hold the power button for 5 seconds, after the computer is unplugged, to
ground the system board.
Safety Instructions
Use the following safety guidelines to protect your computer from potential damage and
ensure your personal safety.
WARNING: Before working inside your computer, read the
safety information
that shipped with your computer. For additional safety best practices
information, see the Regulatory Compliance Homepage at
dell.com/regulatory_compliance.
WARNING: Disconnect all power sources before opening the computer cover or
panels. After
yo
u finish working inside the computer, replace all covers, panels,
and screws before connecting to the power source.
CAUTION: To avoid damaging the computer, ensure tha
t
the work surface is flat
and clean.
CAUTION: To avoid damaging the components and cards, handle them by their
edges and avoid touching pins and co
ntacts.
OM_Book.book Page 7 Tuesday, November 20, 2012 12:43 PM