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Repair guides and disassembly information for the new base-model 14-inch MacBook Pro, released November 2023, refreshed with the Apple-designed M3 SoC. Successor to the 13-inch Touch Bar MacBook Pro with M2.

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Beeping once every 7-8 seconds during heavy use

New Apple M3 Pro Nov 2023 beeps every 7-8 once it begins to work harder/heats up(?). I believe the fan also does not start spinning. Beeping comes straight out of the board, not a speaker beep and continues even when sound is off. The beeping is not during startup, and the mac works as normal with the exception of the beeping.

I think that a small amount of liquid was spilled on the left side of the keyboard prior to this issue appearing. I have "There may be an issue with the fan: PPF003,PPF004,PPF001" from diagnostics.

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Is this beep during startup? Does your machine boot into MacOS at all?

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@jmehnert

No, this is a completely separate issue to the "3 beeps on startup" that I see everywhere online. The beeping doesn't occur on startup. Mac works completely normally except for the incessant beeping every 7-8 seconds once the temp begins to heat up. Otherwise can use the computer as normal.

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@computer100 - I hope I selected your model 14”

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Can you run the onboard diagnostics? Press the D Startup key while cools and then again when it starts beeping see if there is a new error and if you see any error when cooled let us know what you got.

Reference: Use Apple Diagnostics to test your Mac

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Okay I've done the diagnostics. The results were the same hot and cold, beeping during both (even when I stuck the macbook in the fridge for a few minutes until it got quite cold)

With the power cable attached, I get "There may be an issue with the fan: PPF003, PPF004, PPF001".

Without the power cable attached, I get "There may be an issue with the fan: PPF003, PPF004, PPF001" AND "There may be an issue with the Power Port: PPF020".

I'm not sure if it's just because you are expected to have the power cable attached during diagnostics? Hopefully this provides some insight. I think ultimately I am going to have to find a repair shop because this feels to me like a board repair issue.

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@computer100 - Yes! This sounds like a much deeper issue! Review your warranty status as well as what your countries laws dictate. Hopefully it’s covered.

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Had it all before, Check the SMC and the supply lines going to it for some faulty components.

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@livfe - Hopefully he can get it fixed under warranty! This is a newer M3 series system. The SMC logic is very different in the M Series.

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@danj Unfortunately I think I did spill some liquid on the laptop prior to this issue occurring. Whether or not it is the cause I think it would void my warranty. Any idea the best way to approach this? I'll probably take it in to apple anyways and see what they say but I don't have my hopes up. Alternatively I am hoping some 3rd party repair could fix the board for ~300$. Any advice appreciated.

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I found This Topic, This Topic and This Topic that maybe is what is causing the issue.

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The possibility I’m thinking is a weak battery and/or the charger is not correct and/or the cord is not the needed USB-C cable or bad MagSafe cord. Diagnostics will give us a clue.

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@danj Yes running diagnostics indeed may provide more insight.

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For the first link, where he was using the wrong charger cable, I do not think that this is not the issue because I am using the stock charging cable I received when I purchased the macbook. However, his description of the error down to the error messages is accurate to my issue.

I think the other two links are not relevant for my particular issue after reading up on them. Thank you for the suggestions though.

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