Users Guide

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Troubleshooting your device
You can troubleshoot your device using indicators like diagnostic lights, beep codes, and error messages
during the operation of the device.
Diagnostic power LED codes
Table 31. Diagnostic power LED codes
Power LED light status Possible cause Troubleshooting steps
Off The device is either turned off
or is not receiving power or in
Hibernation mode.
• Re-seat the power cable in the power
connector on the back of the device and
the electrical outlet.
• If the device is plugged into a power
strip, ensure that 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 that the
device turns on properly.
• Ensure the electrical outlet is working by
testing it with another device, such as a
lamp.
Steady/blinking amber The device fails to complete
POST or processor failure.
• Remove and reinstall any cards.
• Remove and reinstall the graphics card,
if applicable.
• Ensure the power cable is connected to
the system board and processor.
Slow Blinking white light The device is in sleep mode.
• Press the power button to bring the
device out of the sleep mode.
• Ensure all power cables are securely
connected to the system board.
• Ensure the main power cable and front
panel cable are connected to the system
board.
Steady white The device is fully functional
and in the On state
If the device is not responding, do the
following:
• Ensure the display is connected and
turned on.
• If the display is connected and turned
on, listen for a beep code.
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