Component

Description

 

 

 

 

(2)

Service door release latch

Releases the service door on the computer.

 

 

 

(3)

Service door release lock

Locks the service door.

 

 

 

(4)

Vents (3)

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.

(5)

SIM slot (select models only)

Supports a wireless subscriber identity module (SIM). The SIM slot is located inside the battery bay.

14 Chapter 2 Getting to know your computer