Bottom components
Component Description
(1) Speaker Produces computer sound.
(2) Memory module/WLAN module compartment Contains a memory module slot and a WLAN (wireless local area
network) module slot.
(3) Hard drive bay Holds the hard drive.
(4) Vents (3) Enable airflow to cool internal components.
CAUTION: To prevent overheating, do not obstruct vents. Use
the computer only on a hard, flat surface. Do not allow another hard
surface, such as an adjoining optional printer, or a soft surface,
such as pillows or thick rugs or clothing, to block airflow.
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) Battery release latches (2) Release the battery from the battery bay.
(6) Battery bay Holds the battery.
(7) SIM slot Contains a subscriber identity module (SIM). The SIM slot is
located inside the battery bay.
(8) WWAN module compartment Contains a WWAN (wireless wide-area network) module slot.
(9) Business–card holder Holds a standard–sized business card.
(10) Bluetooth compartment Contains a Bluetooth device (select models only).
ENWW Bottom components 13
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