Bottom components
Item Component Function
(1) Battery bay Holds the battery.
(2) Speaker Produces sound.
(3) SIM slot Contains a SIM. The SIM slot is located inside the battery
bay.
(4) Vents (3) 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) Hard drive compartment Holds the hard drive, memory module slots, WLAN module
(select models only) and WWAN 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) Docking connector Connects an optional docking device.
(7) Charge level indicator Displays the approximate remaining battery charge.
(8) Battery release latch Releases the battery from the battery bay.
(9) Accessory battery connector Connects an optional accessory battery.
(10) Accessory battery connector door Slides open to expose the accessory battery connector.
Bottom components 15
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