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2.4GHz, 2.7GHz, or 2.8GHz quad-core Intel Core i7 processor (Turbo Boost up to 3.8GHz) with 6MB shared L3 cache. Released February 2013.

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Replaced the right fan, but new fan is still noisy / makes new noise


My early 2013 Macbook Pro will be turning 5 in March, and has had intermittent problems with the fans since I bought it. In its first year, the fans would be super loud and rev up violently, suddenly - that problem was resolved under AppleCare.

Since then, the fans have always seemed unusually loud, but I always just sort of dealt with it.

Earlier this year, the right fan started to rev up to an almost deafening degree (like a blender), randomly. This happened more and more frequently until I bit the bullet, bought the necessary parts and replaced the fan myself. Everything seemed to go smoothly and as planned.

So now I have a new right fan, and the new fan is making strange noises - a buzzing sound, which gets much worse when I physically tilt the machine.

The left fan works perfectly, quiet as always. I've reset the SMC, but that hasn't made a difference. Here's a video to showcase the problem:

The sound isn't as loud as it seems in the video, but it gives a good idea of what I'm hearing.

Does anyone have any ideas for solving this?

I don't want to replace the left fan, since it works perfectly and I'd rather not mess with that. The right fan is loud at low/all speeds, and temperature doesn't seem to be an issue. I've read things about fan "alignment," but can't find any specifics about that or how to address it.

Thanks and please help if you can!

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Well that sounds like it hitting something, like a cable or you possibly got a bad fan. Check to see that the wires are not getting into it. Also when you have it open use some canned air to turn it and see if you can spot what it is.

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Thanks so much - will open it back up and see if I can determine what's making contact with it.


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PleatedPlants. Did you ever solve it?

I have the same problem. I too cleaned it out first then I replaced the fan with a new one. Thing is the new one is even louder. Especially when moving it around like in your video.

My next step is opening up the old fan and try to clean it and put silicone grease on the bearing. I might try to re-align the fan it if I figure out how to do it.

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