Dell 15 Manuel du propriétaire télécharger pdf (Page 7)

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 are using a different operating system, see the documentation

of your operating system for shut-down instructions.

3 Disconnect your computer and all attached devices from their electrical outlets.

4 Disconnect all telephone cables, network cables, and attached devices from your

computer.

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 you finish working inside the computer, replace all covers, panels,

and screws before connecting to the power source.

CAUTION: To avoid damaging the computer, ensure that 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 contacts.

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Dell 15 Manuel du propriétaire Page 7