Dell T3400 manual Blinking green The computer is in a power

8 power light	The power light illuminates and blinks or remains solid
	to indicate different states:
	• No light — The computer is turned off (S4, S5, or
	mechanical OFF).
	• Steady green — The computer is in a normal
	operating state.
	• Blinking green — The computer is in a power-
	saving state (S1 or S3).
	• Blinking or solid amber — See "Power Problems" on
	page 123.
	To exit from a power-saving state, press the power
	button or use the keyboard or mouse if it is configured
	as a wake device in the Windows Device Manager. For
	more information about sleep states and exiting from a
	power-saving state, see "Power Management" on
	page 40.
	For a description of diagnostic light codes for
	troubleshooting problems with your computer, see
	"Diagnostic Lights" on page 100.

9diagnostic lights (4) Use the diagnostic lights to help you troubleshoot a problem with your computer (see "Diagnostic Lights" on page 100).

10	microphone	Use the microphone connector to attach a personal
	connector	computer microphone for voice or musical input into a
		sound or telephony program.
11	headphone connector	Use the headphone connector to attach headphones.
12	network link light	The network link light is on when a good connection
		exists between a 10-Mbps, 100-Mbps, or 1000-Mbps
		(or 1-Gbps) network and the computer.

About Your Computer

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