HP ProBook 450 G3 Notebook PC - Maintenance and Service Guide
Component Description
(3) Battery bay Holds the battery.
(4) Battery release latch Releases the battery.
(5) Vents (3) Enable airow 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 o during routine
operation.
(6) Service door Provides access to the hard drive bay and the memory
module slots.
(7) SIM card slot Supports a wireless subscriber identity module (SIM) card.
The SIM card slot is located inside the service door.
14 Chapter 2 External component identication