![](/images/new-backgrounds/1152208/15220839x1.webp)
Bottom
Component |
| Description |
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(1) | Battery bay | Holds the battery. |
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(2) | Vents (5) | Enable airflow to cool internal components. |
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| NOTE: The computer fan starts up automatically |
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| to cool internal components and prevent |
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| overheating. It is normal for the internal fan to cycle |
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| on and off during routine operation. |
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(3) | Battery release latch | Releases the battery from the battery bay. |
(4) | Wireless compartment, memory |
| module compartment, |
| (SSD)/hard drive bay. Also allows |
access to keyboard, and optical disk drive (ODD).
The service door provides access to the keyboard, ODD, SSD/hard drive bay, wireless compartment and memory module compartment.
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 customer support through Help and Support.
12 | Chapter 2 External component identification |