![](/images/backgrounds/288963/hp-cq43-users-manual-54667523x1.png)
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Item | Component | Description |
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(1) | Battery bay | Holds the battery. |
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(2) | Battery release latch | Releases the battery from the battery bay. |
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(3) | Vents (5) | Enable airflow to cool internal components. |
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| NOTE: The computer fan starts up automatically to cool |
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| internal components and prevent overheating. It is normal |
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| for the internal fan to cycle on and off during |
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| routine operation. |
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(4) | Hard drive bay | Holds the hard drive. |
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(5) | Memory module compartment | Contains the wireless LAN (WLAN) device and the |
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| memory module slots. |
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, and then contact technical support through Help and Support.
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