HP EliteBook 840 G1 Service Manual page 26

Component
(1)
(2)
(3)
(4)
(5)
14 Chapter 2 External component identification
Power button
Speakers (2)
Wireless button
Volume mute button
Fingerprint reader (select models only)
Description
When the computer is off, press the button to turn on the
●
computer.
When the computer is on, press the button briefly to
●
initiate Sleep.
When the computer is in the Sleep state, press the button
●
briefly to exit Sleep.
When the computer is in Hibernation, press the button
●
briefly to exit Hibernation.
CAUTION: Pressing and holding down the power button
will result in the loss of unsaved information.
If the computer has stopped responding and operating system
shutdown procedures are ineffective, press and hold the
power button for at least 5 seconds to turn off the computer.
To learn more about your power settings:
Windows 8:
1. From the Start screen, type power, select Settings, and
then select Power Options.
Windows 7:
1. Select Start > Control Panel > System and
Security > Power Options.
Linux:
1. Select Computer > Control Center.
2. In the left pane, click System, and then click Power
Management in the right pane.
Produce sound.
Turns the wireless feature on or off but does not establish a
wireless connection.
Mutes and restores speaker sound.
Allows a fingerprint logon to Windows, instead of a
password logon.