Turning Off Your Computer; Before Working Inside Your Computer - Dell Latitude ATG D620 User Manual

Adding and Replacing Parts: Dell Latitude ATG D620 User's Guide

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 Start→ Shut Down→ Shut
down→ OK.
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.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help
ensure your own personal safety.
CAUTION: Before you begin any of the procedures in this section, follow the safety
instructions in the Product Information Guide.
CAUTION: Handle components and cards with care. Do not touch the components or
contacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a
component such as a processor by its edges, not by its pins.
NOTICE: Only a certified service technician should perform repairs on your computer. Damage
due to servicing that is not authorized by Dell is not covered by your warranty.
NOTICE: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable
itself. Some cables have a connector with locking tabs; if you are disconnecting this type of
cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart,
keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable,
ensure that both connectors are correctly oriented and aligned.
NOTICE: To avoid damaging the computer, perform the following steps before you begin
working inside the computer.
1. Ensure that the work surface is flat and clean to prevent the computer cover from being
scratched.
2. Turn off your computer (see
3. If the computer is connected to a docking device (docked), undock it. See the documentation
that came with your docking device for instructions.
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Turning Off Your Computer).