Buttons, speakers, and fingerprint reader
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 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.
▲
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
Produce sound.
(3)
Wireless button
Turns the wireless feature on or off but does not establish a
wireless connection.
12
Chapter 2 External component identification
Summary of Contents for ProBook 640 G2
Page 4: ...iv Important Notice about Customer Self Repair Parts ...
Page 6: ...vi Safety warning notice ...
Page 87: ...Reverse this procedure to replace the panel Component replacement procedures 77 ...
Page 89: ...Reverse this procedure to replace the audio board Component replacement procedures 79 ...
Page 91: ...Reverse this procedure to replace the audio boardr Component replacement procedures 81 ...
