Dell 519, 518, MT480 manual Indicates power-on state

Controls and Lights	Inspiron 518/519
Front of the computer
Power button	Push button
Power light	Blue light — Blinking blue indicates that
	the computer is in sleep state; solid blue
	indicates power-on state.
	Amber light — Blinking amber indicates a
	problem with the system board. A solid
	amber light when the system does not
	boot indicates that the system board
	cannot start initialization. This could be
	an issue with the system board or power
	supply (see "Power Problems" on
	page 35).
Drive activity light	Blue light — A blinking blue light
	indicates the computer is reading data
	from or writing data to to the SATA hard
	drive or the optical drive.

Specifications

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