Bottom - HP EliteBook 820 G1 Maintenance And Service Manual

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16 Chapter 2 External component identification
Component Description
Service cover Provides access to the hard drive bay, the WLAN module slot, the WWAN
module slot, and the memory module slots.
CAUTION:
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 support through Help
and Support.
Service cover Releases the service cover from the computer. A security screw is available to
release latch prevent the service cover from being accidentally removed.
Vents (2) Enable airflow to cool internal components.
NOTE:
and prevent overheating. It is normal for the internal fan to cycle on and off
during routine operation.
To prevent an unresponsive system, replace the wireless module
The computer fan starts up automatically to cool internal components