Before Working Inside Your Computer - Dell Inspiron 9300 Owner's Manual

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:
Product Information Guide.
CAUTION:
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:
servicing that is not authorized by Dell is not covered by your warranty.
NOTICE:
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:
periodically touching an unpainted metal surface (such as a connector on the back of the computer).
NOTICE:
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 page 81.
3
If the computer is connected to a docking device (docked), undock it. See the documentation
that came with your docking device for instructions.
NOTICE:
from the network wall jack.
4
Disconnect any telephone or network cables from the computer.
NOTICE:
computer.
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Adding and Replacing Parts
Before you begin any of the procedures in this section, follow the safety instructions in the
Handle components and cards with care. Do not touch the components or contacts on a
Only a certified service technician should perform repairs on your computer. Damage due to
When you disconnect a cable, pull on its connector or on its strain-relief loop, not on the cable
To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by
To avoid damaging the computer, perform the following steps before you begin working inside
To disconnect a network cable, first unplug the cable from your computer and then unplug it
To avoid damaging the system board, you must remove the main battery before you service the