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2–10 Maintenance and Service Guide
External component identification
Bottom components
Item Component Description
(1) Battery bay Holds the battery.
(2) Battery release latches (2) Release the battery from the battery bay.
(3) Vents (4) Enable airflow to cool internal components.
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The computer fan starts up automatically to cool internal components
and prevent overheating. It is normal for the internal fan to cycle on and
off during routine operation.
(4) Memory module compartment Contains the memory module slots.
(5) WLAN module compartment Contains the wireless LAN module slot.
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To prevent an unresponsive system, replace the wireless module only
with a wireless module authorized for use in the computer by the
governmental agency that regulates wireless devices in your country.
If you replace the module and then receive a warning message, remove
the module to restore computer functionality, and then contact technical
support through Help and Support.
(6) Hard drive bay Holds the hard drive.