HP EliteBook 850 G1 Notebook PC - Manual (Page 23)

Component Description
(4) Service door release lock Locks the service door.
(5) 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.
Component Description
(1) Service door Provides access to the hard drive bay, the wireless
LAN (WLAN) module slot, the WWAN module slot,
and the memory module slots.
CAUTION: To prevent an unresponsive system,
replace the wireless module only with a wireless
module authorized for use in the computer by the
governmental agency that regulates wireless devices
in your country or region. If you replace the module
and then receive a warning message, remove the
module to restore computer functionality, and then
contact support through HP Support Assistant. To
access HP Support Assistant on the Start screen,
select the HP Support Assistant app.
(2) Service door release latch Releases the service door on the computer.
Bottom 13