HP ZBook 15 G2 Mobile Workstation Maintenance And Service Manual page 25

Component
(9) Service door
Description
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.
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. To
access Help and Support, select Start > Help and Support.
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