Controls and Lights Front panel Power button

Controls and Lights

Front panel:
Power button	push button — Press the power button to turn on the
	computer.
	NOTICE: To avoid losing data, do not turn off the
	computer by pressing the power button. Instead,
	perform an operating system shutdown.
Power light	green light — Blinking green in sleep state; solid
	green in normal power-on state.
	amber light — Blinking amber indicates that an
	internal power problem may exist; solid amber
	indicates that a device may be malfunctioning or
	incorrectly installed (see "Power Problems" on
	page 45).
Network activity lights (2)	green blinking light — Flashes when the computer is
	transmitting or receiving network data. A high
	volume of network traffic may make this light appear
	to be in a steady on state.
Hard drive activity light	green light — The hard drive activity light is on when
	the computer reads data from or writes data to the
	hard drive. The light may also be on when a device
	such as an optical drive is in operation.

Specifications