HP EliteBook 725 G2 Notebook PC - Manual (Page 25)

Component Description
(2) Service door release latch Releases the service door.
NOTE: A security screw is available to prevent the
service door from being accidentally removed.
(3) Vents (2) 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.
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