Bottom components
Item Component Function
(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.
NOTE: 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 a memory module.
(5) Hard drive bay Holds the hard drive.
(6) WLAN module compartment (select models only) Contains a WLAN module slot.
CAUTION: To prevent an unresponsive system, use only
a wireless module authorized for use in the computer by
the governmental agency that regulates wireless devices
in your country or region. If you install the module and then
receive a warning message, remove the module to restore
computer functionality, and then contact technical support
through Help and Support.
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