Bottom components
Item Component Function
(1)
Battery bay Holds the battery.
(2)
Docking connector (select models only) Connects an optional docking device.
(3)
Battery latches (2) Release the battery from the battery bay.
(4)
Vents (5) 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 internal
fan to cycle on and off during routine operation.
(5)
Accessory battery connector Connects an optional accessory battery.
(6)
Hard drive bay Holds the hard drive.
(7)
Bluetooth module compartment (select models only) Contains a Bluetooth device.
(8)
Memory module compartment Contains the memory module slot.
(9)
WLAN module compartment Contains the WLAN module slot.
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.
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