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HP ProBook 640 G1 - Front

HP ProBook 640 G1
170 pages
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Front
Component Description
(1) Wireless light
White: An integrated wireless device, such as a
wireless local area network (WLAN) device and/or a
Bluetooth® device, is on.
Amber: All wireless devices are off.
(2) Power light
On: The computer is on.
Blinking: The computer is in the Sleep state.
Off: The computer is off.
(3) AC adapter/Battery light
White: The computer is connected to external power
and the battery is charged from 90 to 99 percent.
Amber: The computer is connected to external power
and the battery is charged from 0 to 90 percent.
Blinking amber: A battery that is the only available
power source has reached a low battery level. When
the battery reaches a critical battery level, the
battery light begins blinking rapidly.
Off: The battery is fully charged.
(4) Hard 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 identification

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