M4 Mac mini - Buzzing/Vibration sound

Hi,

I have a question about my new Mac Mini with the M4 chip.

When I listen very closely, the device makes a buzzing sound, almost like the fan is running at a very low speed.

This only happens when I connect an HDMI cable to the Mac Mini. As soon as I disconnect the cable, the buzzing/vibration like sound stops.

I’ve already tried different HDMI cables, as well as another monitor and a different power adapter, but the issue persists.

This happens both when the Mac Mini is powered on and even off. The buzzing sounds stops, if I unplug the power cable of the monitor.

The sound isn’t loud; you really have to listen closely to notice it. It feels almost like the fan is running, but very, very quietly.

Posted on Nov 10, 2024 5:06 AM

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Posted on Nov 10, 2024 6:54 AM

What Displays(s) do you have...?

Cheap long poorly shielded HDMI cables are only good for TV's.

Use short high speed 4K HDMI to HDMI cable or test a short high speed USB-C to HDMI cable.

Personally I would test and use a short high speed 4K USB-C to HDMI cable.

Or up that to a short high speed 8K USB-C to HDMI cable for Displays over 4K.

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