HP EliteBook 820 G2 Notebook PC and HP EliteBook 720 G2 Notebook PC - Maintenance and Service Guide
Component Description
(3) Service door release latch Releases the service door.
(4) Service door release lock Locks the service door.
(5) Vents (2) 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) SIM slot (select models only) Supports a wireless subscriber identity module (SIM). The
SIM slot is located inside the battery bay.
Locating the serial number, product number, and model number
The serial number, product number, and model number of your computer are located on the rear of the
computer. You may need the information when you travel internationally or when you contact support.
Locating the serial number, product number, and model number 19