Dell Alienware M17x (Mid 2009) - Manual (Page 8)

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CHAPTER 1: BEFORE YOU BEGIN
Ensure that the work surface is flat and clean to prevent the computer cover 1.
from being scratched.
Turn off your computer (see “Turning Off Your Computer” on page
2. 8).
If the computer is connected to a docking device (docked), undock it. See the 3.
documentation that came with your docking device for instructions.
CAUTION: To disconnect a network cable, first unplug the cable from
your computer and then unplug the cable from the network device.
Disconnect all telephone or network cables from the computer. 4.
Press and eject any installed cards from the ExpressCard slot and the 8-in-1 5.
Memory Card Reader.
Disconnect your computer and all attached devices from their electrical
6.
outlets.
CAUTION: To help prevent damage to the system board, you must remove
the battery from the battery bay before you service the computer.
CAUTION: To avoid damage to the computer, use only the battery
designed for this particular Dell computer. Do not use batteries designed
for other Dell computers.
Remove the battery (see “Removing the Battery Pack” on page 7. 11).
Press the power button to ground the system board. 8.
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential
damage and to help to ensure your own personal safety.
WARNING: Before you begin any of the procedures in this section, follow
the safety instructions that shipped with your computer. For additional
safety best practices information, see the Regulatory Compliance
Homepage at www.dell.com/regulatory_compliance.
CAUTION: Handle components and cards with care. Do not touch the
components or contacts on a card. Hold a card by its edges. Hold a
component such as a processor by its edges, not by its pins.
CAUTION: 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.
CAUTION: When you disconnect a cable, pull on its connector or on its
pull-tab, not on the cable itself. Some cables have connectors 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.
CAUTION: To avoid damaging the computer, perform the following steps
before you begin working inside the computer.