Buttons, Speakers, And Fingerprint Reader - HP EliteBook 840r G4 Maintenance And Service Manual

Buttons, speakers, and fingerprint reader

Component
(1) Power button
(2) Speakers (2)
(3) Wireless button
(4) Volume mute button
(5) Fingerprint reader or blank
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 results in the loss of unsaved
information.
If the computer has stopped responding and 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, see your power options.
▲
Right-click the Power meter icon
Produce sound.
Turns the wireless feature on or off but does not establish a wireless connection.
A wireless network must be set up before a wireless connection is possible.
Mutes and restores speaker sound.
Allows a fingerprint logon to Windows, instead of a password logon.
NOTE: The fingerprint reader and blank look similar. To verify that you have a fingerprint
reader, press the Windows key on your keyboard, select Settings, select Accounts, select
Sign-in options, and then follow the on-screen instructions.
and then select Power Options.
Keyboard area 11