HP 701974-DD1 User Manual
Component
Description
(3)
Service door
Protects the hard drive bay, the wireless LAN (WLAN)
module slot, the WWAN module slot, and the memory
module slots.
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 Help and
Support. On Windows 7 models, contact technical support
through Help and Support. On Windows 8 models, from
the Start screen, type help, and then select Help and
Support.
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 Help and
Support. On Windows 7 models, contact technical support
through Help and Support. On Windows 8 models, from
the Start screen, type help, and then select Help and
Support.
(4)
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.
for the internal fan to cycle on and off during routine
operation.
20
Chapter 2 External component identification