r/pcgamingtechsupport • u/Other-Gap5425 • 1d ago

Troubleshooting power on light started blinking

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Recently, the power light on top of my case started blinking, and I have no idea why. Other than the light blinking, nothing else seems to be wrong. Device Manager doesn't have any flags, and Event Viewer doesn't show anything.

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u/papercut2008uk 1d ago

You have a custom power profile active.

Some software does this, it's usually software associated with your Motherboard. So if you have any programs installed from the motherboard manufacturer or software that handles clock speeds and power management etc, it's what is doing it.

It's set to a power profile that will cause the power LED to flash.

Sleep mode also can have the power LED flashing like that.