HP ProBook 4545s Getting Started HP Notebook - Page 26

Identifying the bottom parts of the computer

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Component (3) Service door (4) Vents (2) Description Protects the hard drive bay, the wireless LAN (WLAN) 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 technical support through Help and Support. 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. Identifying the bottom parts of the computer NOTE: The service door has been removed in the following illustration. Component (1) (2) (3) 18 Chapter 2 Getting to know your computer Description Memory modules Hard drive WLAN module slot (select models only)

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Component
Description
(3)
Service door
Protects the hard drive bay, the wireless LAN (WLAN)
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 technical support through
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.
Identifying the bottom parts of the computer
NOTE:
The service door has been removed in the following illustration.
Component
Description
(1)
Memory modules
(2)
Hard drive
(3)
WLAN module slot (select models only)
18
Chapter 2
Getting to know your computer