High-pitched noise when powering a Mac mini M4 from a Jackery bar
A ran from a Jackery power bar, but a high-pitched whining or buzzing sound seemed to come from the Mac mini. The suspected cause is the way the power bar changes AC power to DC power, or the possibility that its inverter is not producing a .
The main concern is whether this kind of power could damage the Mac mini’s internal ics over time. The practical question is whether a different would be safer for powering the Mac mini.
Key points
- The powered on from the Jackery power bar.
- A high-pitched whining or buzzing sound seemed to come from the Mac mini.
- The suspected issue is AC-to-DC or a non- inverter.
- The main worry is possible harm to the Mac mini’s internal ics.
- For a , verified clean power is safer than an uncertain power bar.