HP ProBook 6440b User Manual page 17

Component
(5) Volume mute button
(6) Volume down button
(7) Volume up button
(8) Fingerprint reader (select models only)
Component
(1) Power button
Description
Mutes and restores speaker sound.
Decreases computer volume.
Increases computer volume.
Allows a fingerprint logon to Windows, instead of a
password logon.
Description
●
When the computer is off, press the button to turn on
the computer.
● When the computer is on, press the button to shut
down the computer.
●
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.
If the computer has stopped responding and Windows
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, select Start >
Control Panel > System and Maintenance > Power
Options.
Identifying hardware 7