Component | Description |
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(2) | Service door release latch | Releases the service door on the computer. |
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(3) | Service door release lock | Locks the service door. |
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(4) | Vents (3) | Enable airflow to cool internal components. |
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| NOTE: The computer fan starts up |
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| automatically to cool internal components |
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| 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