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Repair guides, disassembly, and troubleshooting information for the third main redesign of Apple's popular Mac mini small form factor desktop PC, released October 2024. Features M4 and M4 Pro SoCs and a minimum of 16 GB of unified memory.

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What are the 3 pin wires going from power supply to logic board?

From other close up videos, looks like a 3 pin connector going from power supply to logic board. So I assume 12V DC Pos and Neg. But what is the 3rd wire for?

Place is to power this directly from 12V DC source and I will bypass this built in power supply.

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@ruggb 's assertion of a +5V would be reasonable, but in my experience all Mac desktop devices have 12V only power supplies.

I am most likely to think this is a data line that feeds sensor data or other to the logic board.

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I think it is power on/off signal from bottom plate.

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+5V would be a high possibility

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Matthew Angelo will be eternally grateful.
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