Bottom components
Component
Description
(1)
Hard drive bay
Holds the hard drive.
(2)
Vents (4)
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.
(3)
Memory module compartment
Contains the memory module and WWAN module.
(4)
SIM slot (select models only)
Contains a subscriber identity module (SIM). The SIM slot is
located inside the battery bay.
(5)
Battery release latches (2)
Release the battery from the battery bay.
(6)
Battery bay
Holds the battery.
(7)
Wireless module compartment
Holds a wireless LAN module.
NOTE:
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.
(8)
Bluetooth compartment (select models only)
Contains a Bluetooth device.
Bottom components
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