8chapter 1 features – HP ProBook 6555b Notebook-PC User 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 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.
8
Chapter 1 Features