Power Button, blinks with colors and that would be a clue to the problem.
The XPS 8940 uses blinking amber and white lights on the power button as diagnostic codes for hardware issues, like
2 amber, 1 white (2,1) for CPU problems, 2,3 for no RAM, 2,4 for RAM failure, or 3,2 for video/PCI issues, indicating specific failures. To find your code, observe the pattern (e.g., 2 amber flashes, then 4 white flashes), then check the Dell manual or support site for the corresponding hardware fault and troubleshooting steps like reseating RAM or checking the battery.
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December 9th, 2025 13:32
The PSU on the back, what color is the LED?
Power Button, blinks with colors and that would be a clue to the problem.
2 amber, 1 white (2,1) for CPU problems, 2,3 for no RAM, 2,4 for RAM failure, or 3,2 for video/PCI issues, indicating specific failures. To find your code, observe the pattern (e.g., 2 amber flashes, then 4 white flashes), then check the Dell manual or support site for the corresponding hardware fault and troubleshooting steps like reseating RAM or checking the battery.