Dell D490 manual Green Power or sleep state

Diagnostic Lights	Power	Problem Description	Suggested Resolution
	Light
	blinking	The computer is in a reduced	Use one of the appropriate methods to "wake
	green	power or "sleep" state.	up" the computer. See "Advanced Features" in
			your User’s Guide.
			If the problem is not resolved and you are trying
			to wake the computer with a USB mouse or
			keyboard, substitute the mouse or keyboard
			with a working PS/2 mouse or keyboard and
			then try to wake the computer.
	blinking	The computer is in a reduced	Use one of the appropriate methods to "wake
	green	power or "sleep" state.	up" the computer. See "Advanced Features" in
			your User’s Guide.
			If the problem is not resolved and you are trying
			to wake the computer with a USB mouse or
			keyboard, substitute the mouse or keyboard
			with a working PS/2 mouse or keyboard and
			then try to wake the computer.
	amber	The BIOS is not executing.	Ensure that the processor is seated correctly and
			restart the computer. See "Processor" in your
			User’s Guide.
(blinking)			If the problem is still not resolved, contact Dell
			for technical assistance.
	blinking	A possible power supply or	Perform the procedure in "Power Problems" in
	amber	power cable failure has	your User’s Guide.
		occurred.	If the problem is still not resolved, contact Dell
(blinking)
			for technical assistance.
	amber	A possible system board	Contact Dell for technical assistance.
		failure has occurred.
(blinking)
	amber	A processor mismatch exists.	Perform the procedure in "Processor Problems"
			in your User’s Guide.
(blinking)

amber	A possible failure has been
	detected in a plug-in
	component such as a graphics
(blinking)	riser card or memory riser
	card.

Verify that any required power cables are connected to the memory and graphics riser cards.

Perform the procedure in "Power Problems" in your User’s Guide.

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