External component identification
Maintenance and Service Guide 2–7
Bottom components
Item Component Function
1
Battery bay Holds the battery.
2
Vents (4) Enable airflow to cool internal components.
✎
The computer fan starts up automatically to cool internal
components and prevent overheating. It is normal for the
internal fan to cycle on and off during routine operation.
3
Battery release latch Releases the battery from the battery bay.
4
Hard drive bay Holds the hard drive.
5
Memory module compartment Holds two memory modules and the wireless local area network
(WLAN) module.
Ä
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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