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Macbook pro 2017

Hi all,

I have a Macbook pro 2017 with logic board 820-00840 that has no audio.

No audio hardware detected.

I don't get HDA_RST_L which should be 1.5 volts.

This voltage came straight from CPU :)

Any ideas how this voltage is produced? Apparently depends on PCH but they seems to be working fine.

Regards,
Sebastien
 

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