Bottom
Item
Component
Description
(1)
Battery bay
Holds the battery.
(2)
SIM slot (select models only)
Supports a wireless subscriber identity module (SIM).
The SIM slot is located inside the battery bay.
(3)
Battery/service cover latch
Releases the battery from the battery bay.
(4)
Vent
Enables 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)
Service cover
Provides access to the hard drive bay, a memory
module slot, the SIM slot (select models only), the
WLAN module, and the WWAN module (select
models only).
14
Chapter 2 External component identification
