HP ProBook 635 Maintenance and Service Guide - Page 24

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Table 2-7 Special keys and their descriptions (continued) Component Description ● When the computer is in the Sleep state, press the button briefly to exit Sleep (select products only). ● When the computer is in Hibernation, press the button briefly to exit Hibernation. IMPORTANT: Pressing and holding down the power button results in the loss of unsaved information. If the computer stops responding and shutdown procedures are ineffective, press and hold the power button for at least 4 seconds to turn off the computer. To learn more about your power settings, see your power options. ▲ Right-click the Power meter icon Power Options. and then select Bottom Use the illustration and table to identify the bottom component. Table 2-8 Bottom component and description Component Vent Description Enables 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. 14 Chapter 2 Components

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Table 2-7
Special keys and their descriptions (continued)
Component
Description
When the computer is in the Sleep state, press the button
briefly
to exit Sleep (select products only).
When the computer is in Hibernation, press the button
briefly
to exit Hibernation.
IMPORTANT:
Pressing and holding down the power button
results in the loss of unsaved information.
If the computer stops responding and shutdown procedures are
ineffective,
press and hold the power button for at least 4
seconds to turn
off
the computer.
To learn more about your power settings, see your power
options.
Right-click the
Power meter
icon
and then select
Power Options
.
Bottom
Use the illustration and table to identify the bottom component.
Table 2-8
Bottom component and description
Component
Description
Vent
Enables
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.
14
Chapter 2
Components