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HP ProBook 640 G2

HP ProBook 640 G2
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Lights
Component Description
(1) Power light
On: The computer is on.
Blinking: The computer is in the Sleep state, a power-saving
state. The computer shuts o power to the display and
other unneeded components.
O: The computer is o or in Hibernation. Hibernation is a
power-saving state that uses the least amount of power.
(2) Microphone mute light
Amber: microphone sound is o.
O: microphone sound is on.
(3) Num lock light On: Num lock is on.
(4) Wireless light On: An integrated wireless device, such as a wireless local area
network (WLAN) device and/or a Bluetooth device, is on.
NOTE: On some models, the wireless light is amber when all
wireless devices are o.
(5) Mute light
Amber: Computer sound is o.
O: Computer sound is on.
(6) Caps lock light On: Caps lock is on, which switches the key input to all capital
letters.
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