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A1706/EMC 3071—于2017年6月上市,这台13''MacBook Pro以可升级至3.5Ghz酷睿i7动态超频至4.0GHz的Kaby Lake处理器为特征。

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Fan stuck on max immediately after boot. (Thermal Paste Replaced)

Macs Fan Control temps are all normal ( 35-40˚C) but the right fan is stuck at 8800~ rpm when it should have been 6864 rpm at max. I did try reinserting and cleaning all the cables connected to the logic board as well as resetting the SMC but the problem persists.

Apple diagnostics show an error of PPF03, meaning a fan data control line might be the cause. Does anyone know where that data line is? Or if so, which of the cables connected to the logic board is responsible for the fans?

UPDATE: Searching the internet, it may be a sensor issue, but all sensors seem to be normal. (Here is a screenshot; In case something is missing)

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The error is a logic board error. You’ll need to trace out the logic to find the defect.

Sadly, Apple has done a good job controlling their schematics and board view drawings. The only thing out their is an incomplete schematic & drawing which is missing the fan control logic.

You’ll need to bring in or ship your system to Apple for repair. Do you have AppleCare+ that will soften the bite otherwise its quite expensive.

Your other option is just replace the logic board your self Mid 2017 13” MacBook Pro retina Touch Bar Logic Boards

We don’t have a proper guide but the MacBook Pro 13" Touch Bar 2017 拆解 should give you enough information on how its mounted and follow this guide first steps to make sure your system is fully off before starting MacBook Pro 15" Touch Bar Late 2016 Battery Replacement

MacBook Pro 13" Touch Bar 2017张图片

指南

MacBook Pro 13" Touch Bar 2017 拆解

难度:

中等

MacBook Pro 15" Touch Bar Late 2016 Battery张图片

指南

MacBook Pro 15" Touch Bar Late 2016 Battery Replacement

难度:

困难

1 - 3 hours

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Thanks, Dan, for the answer. Sadly, there are no official Apple repair centers in my country, just authorized ones. And they even charge ~45$ just to get it diagnosed and charge me a kidney for a simple fix. I'd rather repair it myself.

In the meantime, I disconnected the said fan for the time being. Temps are still okay thankfully because of the other fan still working.

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Victor Emmanuel Baylosis 将永远感激不已
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