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Chapter 17: Troubleshooting
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Safety guidelines
While troubleshooting your notebook, follow these safety guidelines:
■ Never remove the memory bay cover or hard drive if your notebook is
turned on, the batteries are installed, or while the modem cable, network
cable, or AC power adapter are connected to the notebook.
■ Make sure that you are correctly grounded before accessing internal
components. For more information about preventing damage from static
electricity, see “Preventing static electricity discharge” on page 234.
■ After you complete any maintenance tasks where you remove the memory
bay cover or hard drive, make sure that you replace the covers or hard drive,
reinstall any screws, then replace the batteries before you start your
notebook.
Warning Do not try to troubleshoot your problem if power cords or
plugs are damaged, if your notebook was dropped, or if
the case was damaged. Instead, unplug your notebook
and contact a qualified computer technician.