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Component Description
(1) Battery bay Holds the battery.
(2)
SIM slot Supports a wireless subscriber identity module (SIM).
The SIM slot is located inside the battery bay.
(3)
Battery release latch Releases the battery.
(4) Accessory battery connector Connects an optional accessory battery.
(5) Docking connector Connects an optional docking device.
(6)
Service door release latch Releases the service door from the computer.
(7) Vents (4) 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.
20 Chapter 2 External Component Identification
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