HP ProBook 6555b Notebook-PC - Manual (Page 18)

Component Description
(4) Wireless button Turns the wireless feature on or off but does not establish
a wireless connection.
(5) Volume mute button Mutes and restores speaker sound.
(6) Volume down button Decreases computer volume.
(7) Volume up button Increases computer volume.
(8) Fingerprint reader (select models only) Allows a fingerprint logon to Windows, instead of a
password logon.
Component Description
(1) Power button ● 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 Standby, press the button
briefly to exit Standby.
● 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.
8 Chapter 1 Features