
Bottom components
Item Component Description
(1) Battery release latch Releases the battery from the battery bay.
(2) Battery bay Holds the battery.
(3) Docking connector Connects an optional docking device.
(4) Vents (5) 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.
(5) Memory module/wireless module compartment Contains the memory module slots, a WWAN module,
and a WLAN module (select models only).
CAUTION: 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.
(6) Bluetooth module compartment (select models only) Contains a Bluetooth device.
(7) Hard drive bay Holds the hard drive.
16 Chapter 2 External component identification
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