HP ProBook 450 G4 Notebook PC and HP ProBook 455 G4 Notebook PC - Maintenance and Service Guide
Buttons, speakers, and ngerprint reader
Component Description
(1) Power button
●
When the computer is o, press the button to turn on the computer.
●
When the computer is on, press the button briey to initiate Sleep.
●
When the computer is in the Sleep state, press the button briey to
exit Sleep.
●
When the computer is in Hibernation, press the button briey 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
ineective, press and hold the power button for at least 5 seconds to turn
o the computer.
To learn more about your power settings, see your power options.
▲ Type power in the taskbar search box, and then select Power and
sleep settings.
‒ or –
Right-click the Start button, and then select Power Options.
(2) Speakers (2) Produce sound.
(3) Wireless button Turns the wireless feature on or o but does not establish a wireless
connection.
A wireless network must be set up before a wireless connection is
possible.
(4) Volume mute button Mutes and restores speaker sound.
(5) Fingerprint reader (select products
only)
Allows a ngerprint logon to Windows, instead of a password logon.
Top 11