Bottom components
Item
(1)
(2)
(3)
(4)
12
Chapter 2 External component identification
Component
Subscriber identity module (SIM) slot (select models
only)
Battery bay
Battery release latch
Vents (6)
Function
Located inside the battery bay.
Holds the battery and contains the SIM slot.
NOTE:
The battery is preinstalled in the battery bay
at the factory.
Releases the battery from the battery bay.
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.