Bottom components
Item Component Function
(1) Hard drive bay Holds the hard drive and wireless wide area network
(WWAN) module (select models only).
NOTE: 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 or region. 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.
(2) Battery bay Holds the battery and contains the SIM slot.
NOTE: The battery is preinstalled in the battery bay
at the factory.
(3) Battery release latch Releases the battery from the battery bay.
(4) Vent 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.
Bottom components 11
