Bottom components
Component Description
(1) Battery bay Holds the battery.
(2) Docking connector Connects an optional docking device.
(3) Vents (3) 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.
(4) Hard drive bay Holds the hard drive and a Bluetooth device.
(5) Memory module compartment Contains the memory module slots and a wireless LAN module
slot.
CAUTION: To prevent an unresponsive system and the display
of a warning message, replace the WLAN module with only a
module authorized for use in the computer by the governmental
agency that regulates wireless devices in your country. 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.
(6) Accessory battery connector Connects an optional accessory battery.
(7) Battery release latch Releases the battery from the battery bay.
16 Chapter 2 External component identification
