Bottom components
Component
Description
(1)
Hard drive and WLAN module compartment
Holds the hard drive and the wireless LAN (WLAN) module.
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.
(2)
Swappable bay release latch
Releases the swappable bay module.
(3)
Memory module compartment
Contains the 2 memory module slots.
(4)
Mini Card compartment
On select models, holds a wireless WAN (WWAN) module and/or
the TV tuner card.
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.
(5)
Battery release latch
Releases the battery from the battery bay.
(6)
SIM slot (select models only)
Contains a subscriber identity module (SIM). The SIM slot is
located inside the battery bay.
(7)
Battery bay
Holds the battery.
(8)
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.
Bottom components
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