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Component Description
(8) H
ard d rive b ay and memory module
compartments
Contains the hard drive, the wireless LAN module slot, the
WWAN module slot, 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. 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.
(9)
Vents (4) Enable airflow to
cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal
for the inter
nal fan to cycle on and off during routine
operation.
16 Chapter 2 Getting to know your computer