Troubleshooting Your Computer

You can troubleshoot your computer using indicators like Diagnostic Lights, Beep Codes, and Error Messages during the operation of the computer.

Diagnostic Power LED Codes

Power LED Light Status	Possible Cause	Troubleshooting Steps

Off	The computer is either turned off	• Re-seat the power cable in
	or is not receiving power.	the power connector on the
	or is not receiving power.	back of the computer and the
		back of the computer and the
		electrical outlet.

Blinking Amber	Computer fails to complete
	POST or processor failure.

Steady Amber	Computer is in standby or this is
	a computer fault error condition,
	including the power supply. Only
	the +5VSB rail on the power
	supply is working correctly.

Steady White	The computer is fully functional
	and in the On state.

•If the computer is plugged into a power strip, ensure the power strip is plugged into an electrical outlet and is turned on. Also, bypass power protection devices, power strips, and power extension cables to verify the computer turns on properly.

•Ensure the electrical outlet is working by testing it with another device, such as a lamp.

•Remove and then reinstall any cards.

•Remove and then reinstall the graphics card, if applicable.

•Ensure the power cable is connected to the motherboard and processor.

•Press the power button to bring the computer out of standby mode.

•Ensure all power cables are securely connected to the system board.

•Ensure the main power cable and front panel cable are securely connected to the system board.

If the computer is not responding, do the following:

•Ensure the display is connected and turned on.