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HP ProBook 640 G2

HP ProBook 640 G2
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Component Description
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.
(3) Battery light When AC power is connected:
White: The battery charge is greater than 90 percent.
Amber: The battery charge is from 0 to 90 percent.
O: The battery is not charging.
When AC power is disconnected (battery not charging):
Blinking amber: The battery has reached a low
battery level. When the battery has reached a critical
battery level, the battery light begins blinking
rapidly.
O: The battery is not charging.
(4) Drive light
Blinking white: The hard drive is being accessed.
Amber: HP 3D DriveGuard has temporarily parked the
hard drive.
18 Chapter 2 External component identication

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