Bottom components
Component Description
(1) Bluetooth compartment (select models only) Contains a Bluetooth device.
(2) 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.
(3) Accessory battery connector Connects an optional accessory battery.
(4) SIM slot (select models only) Contains a subscriber identity module (SIM). The SIM slot is
located inside the battery bay.
(5) Battery bay Holds the battery.
(6) Battery release latches (2) Release the battery from the battery bay.
(7) Docking connector (select models only) Connects an optional docking device.
(8) Memory module compartment Contains the memory module slot.
(9) WLAN module compartment (select models
only)
Contains a WLAN (wireless local area network) module slot.
(10) Hard drive bay Holds the hard drive.
14 Chapter 2 Components ENWW
Vents