Memory module compartment
Mini Card compartment (select models only)
Contains the subwoofer speaker.
Holds the battery.
Contains the memory module slots.
Holds a WLAN device.
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.