HP ProBook 440 G2 Notebook PC - Manual (Page 32)

Bottom
NOTE: Refer to the illustration that most closely matches your computer.
Component Description
(1) 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.
(2) Service door Provides access to the hard drive bay and the memory
module slots.
(3) Battery release latch Releases the battery.
Battery lock latch Locks the battery in the battery bay.
(4) Service door Provides access to the wireless LAN (WLAN) module
slot, the WWAN module slot, and SIM slot.
22 Chapter 2 Getting to know your computer