
Bottom
 NOTE: Your computer may look slightly different from the illustration in this section.
NOTE: Your computer may look slightly different from the illustration in this section.
| Component | 
 | Description | 
| 
 | 
 | 
 | 
| (1) | Service door | Gives access to the hard drive, the wireless LAN | 
| 
 | 
 | module slot, the WWAN module slot (select | 
| 
 | 
 | models only), and the 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. | 
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 | 
 | 
| (2) | Vents | Enables airflow to cool internal components. | 
| 
 | 
 | NOTE: The computer fan starts up | 
| 
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 | automatically to cool internal components and | 
| 
 | 
 | prevent overheating. It is normal for the internal | 
| 
 | 
 | fan to cycle on and off during routine operation. | 
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 | 
 | 
 | 
| (3) | Near Field Communication (NFC) | Allows you to connect wirelessly with, | 
| 
 | antenna | communicate with, and transfer data/info to and | 
| 
 | 
 | from your Near Field Communication (NFC)- | 
| 
 | 
 | compatible devices. | 
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 | 
 | 
 | 
| (4) | Battery bay | Holds the battery. | 
| 
 | 
 | 
 | 
| (5) | Battery bay cover release latch | Releases the battery cover over the battery bay. | 
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