This is a Macbook Pro 15" Retina from 2013 (11,3). After switching my SSD for a new one, the fans started to behave wildly, spinning constantly at ~6000rpm. If I use a fan control app I can keep them in the 3000 range, which is silent, and there will be no heating whatsoever.

If I switch back to the previous SSD, fans behave normally, with low speeds on Auto and light processing load. Upon switching back to the new one, again I get high speed fans.

I've tried: PRAM reset, SMC reset, OS reinstall from scratch.

What could explain this behavior?

  • What SSD did you change it out to? The 2013 MBPs no longer use 2.5" SATA SSDs. – Allan Dec 21 '17 at 22:16
  • It's the other kind. Looks like an m.2 pcie chip. – lotcarneiro Dec 21 '17 at 22:25
  • There are compatibility issues with that type of SSD - it's important you know the brand/model of the SSD to see if it's fully compatible. – Allan Dec 21 '17 at 22:29
  • I switched mine for an SSD removed from a Macbook Air. It works 100% except for the weird fan issue. – lotcarneiro Dec 21 '17 at 22:39
  • Pulling.....teeth....argh..... Model year of the MacBook Air? Please remember, we're not there to look over your shoulder. – Allan Dec 21 '17 at 22:55

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