Bottom
Item | Component | Description |
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(1) | Battery bay | Holds the battery. |
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(2) | SIM slot (select models only) | Supports a wireless subscriber identity module (SIM). |
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| The SIM slot is located inside the battery bay. |
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(3) | Battery/service door latch | Releases the battery from the battery bay. |
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(4) | Vent | Enables airflow to cool internal components. |
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| NOTE: The computer fan starts up automatically to |
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| cool internal components and prevent overheating. It is |
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| normal for the internal fan to cycle on and off during |
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| routine operation. |
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(5) | Service door | Provides access to the hard drive bay, a memory |
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| module slot, the SIM slot (select models only), the |
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| WLAN module, and the WWAN module (select |
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| models only). |
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