External component identification 2–8
Bottom components
Item Component Function
1 Battery bay Holds the battery.
2 Battery release latch Releases the battery from the battery bay.
3 WLAN module compartment Holds the WLAN module.
ÄTo prevent an unresponsive system, replace the wireless
module with only 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.
4Vents (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.
5 Memory module compartment Contains the memory module slots.
6Hard drive bay Holds the hard drive.