Microsoft W840DI manual The Power LED, Users Guide, Before You Begin, Page

User's Guide Before You Begin

1.3The Power LED

The Power LED is located on the power button (Chapter 1.6) and is used to indicate the power status of your system unit. The table below illustrates how the Power LED behaves in different situations.

Off		The system is off or in hibernation mode.
Blue
	Steady on	•	The system is running on AC power and the battery
			is not inserted, or
		•	The battery is fully charged.
	Blinking	The system is in Sleep mode.
Amber
	Steady on	The battery is charging.
	Blinking once	The battery is in use (discharging) and the system is not
	per 3 seconds	connected to AC power.
	Blinking once	The battery energy level is down to 10%, or less.
	per second
	Blinking	The system is not connected to AC power and the battery
	steady in high	level is below 5%, representing insufficient power to turn
	frequency	on the system.
Purple (steady on)		The battery is not charging or fails.

Note: For the exact location of the Power LED, please refer to Panoramic View in Chapter 1.2.

For details on Sleep and Hibernate, please refer to Power Options in the Control Panel of your Microsoft Windows operating system.

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