2–18 Maintenance and Service Guide
External component identification
Bottom components
Item Component Description
(1) Battery bay Holds the battery.
(2) SIM slot Contains a wireless subscriber identity module (SIM) (select models only).
The SIM slot is located inside the battery bay.
(3) Battery release latch Releases the battery from the battery bay.
(4) Docking connector Connects an optional docking device.
(5) Accessory battery connector Connects an optional accessory battery.
(6) Vents (6) Enable airflow to cool internal components.
✎
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.
(7) Hard drive bay Holds the hard drive.
(8) Memory module compartment Contains an expansion memory module slot.
(9) HP Mobile Broadband Module
compartment
Contains an HP Mobile Broadband Module (select models only).
✎
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.
(10) Bluetooth compartment Contains a Bluetooth device.
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