Bottom
Component |
| Description |
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(1) | Battery and access cover release latches | Release the battery from the battery bay, and release |
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| the access cover from the computer. |
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(2) | Battery bay | Holds the battery. |
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(3) | SIM slot | Contains a wireless subscriber identity module (SIM) |
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| (select models only). The SIM slot is located inside the |
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| battery bay. |
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(4) | Vents (2) | Enable 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) | Hard drive bay | Contains the hard drive, the wireless LAN module slot, |
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| and the memory module slot. |
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless module authorized for use in the computer by the governmental agency that regulates wireless devices in your country or region. If you replace the module and then receive a warning message, remove the module to restore computer functionality.
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