HP ENVY m4-1002xx Notebook PC - Manual (Page 22)

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Component Description
(1) Battery bay Holds the battery.
(2) Battery release latch Releases the battery from the battery bay and opens the
service door.
(3) HP Triple Bass Reflex Subwoofer Provides superior bass sound.
(4) 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.
12 Chapter 2 Getting to know your computer