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.
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.
(7)
Hard drive bay
Holds the hard drive.
(8)
Memory module compartment
Contains an expansion memory module slot.
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Chapter 2 External component identification