macbook pro fan

  • 1
  • Question
  • Updated 7 months ago
  • (Edited)
Does anyone else have issues with the fan on the MacBook Pro?  Often it will kick in and become so loud that I have to wait for it to die down before I can resume recording.

I do have a lot of apps running, but my cpu and memory usages are showing very low.  If I have several takes using Start Over it seems to happen.  Then I cancel and wait for it to die down before I hit Start Recording again.

Also, I noticed that it happens more when I can capturing a video feed than when I am doing a screencast.
Photo of ri

ri

  • 9 Posts
  • 1 Reply Like

Posted 8 months ago

  • 1
Photo of Jack Fruh

Jack Fruh, Champion

  • 568 Posts
  • 191 Reply Likes
This is pretty common with MacBooks, here are a few thoughts that might help:

#1. - check up at the apple store.
Dust can accumulate inside your MacBook, blocking airflow, you could try hitting it with compressed air, or take it to your local apple store, tell them it’s running hot and you’d like it cleaned.

#2 - cooling ability of the macs fans is dependent on room temperature- you might find that setting the temp down in your house has a noticeable difference in fan noise

#3 - be sure to shut down unneeded background services.
Things like Dropbox, time machine and online backups can compete with camtasia for CPU cycles, and raise the temp of your Mac

#4 - manually control your macs fan- programs like istat menus have a power user option to manually set fan speed.
Since macs favor quiet operation, the factory fan settings tend to under spin the fans until the very last possible moment. Manually controlling the fans could yield better results.

#5 - use isotope rx elements to remove the fan noise from your recording.
Photo of ri

ri

  • 9 Posts
  • 1 Reply Like
Thanks for those tips, Jack.  I wasn't aware of all of those.  I'll check them out!
Photo of rumplesteel

rumplesteel

  • 22 Posts
  • 1 Reply Like
Very interesting. I have never had that problem yet and my mac pro is 5 years old.
Photo of ri

ri

  • 9 Posts
  • 1 Reply Like
Are you on Mojave?  I'm wondering if it was OS related because my old MBP was quiet up to a certain point about a year or so ago and then the fan started kicking in much more often.  Then I bought the new MBP in the Fall, but it kicks in just as much even though it has twice the memory and a faster processor.
Photo of davemillman

davemillman

  • 617 Posts
  • 208 Reply Likes
I've been using Camtasia on a 2011 MacBook Pro and 2013 and 2016 MBP Retinas. I destroyed the 2011 model when the ice bag it was resting on leaked. Of course, it was resting on the ice bag to keep the fan from coming on during voiceover recording...

Maybe that means I'm a bad source of advice on this issue, but here goes: 
  1. The Retina models with SSD run cooler, so the fan comes on less. That may be due to the higher processor power of each successive machine.
  2. I record in Audacity. This is less convenient than recording in Camtasia, but gives far more control.
  3. When recording, make sure nothing else is running. The worst offenders are browsers with many open tabs running animated ads and videos and downloading email, any app that plays video files (quicktime, camtasia, VLC), and anything from Adobe or Microsoft.
  4. I used to shut down wifi and bluetooth, but don't see any benefit from that with the browsers closed.
The only time I notice the fan on my 2016 Retina is when I'm rendering video. It may run at other times, but it's too quiet to notice.

Finally Activity Monitor.app is your friend. If the fan comes on, launch Activity Monitor, sort by CPU usage and find the culprit. It's also fun to watch renders on the CPU graphs if you're a geek like me.
Photo of cbkr.team

cbkr.team

  • 83 Posts
  • 33 Reply Likes
What Jack Fruh said makes a lot of sense, particularly the manual control of fans. I had a problem with my fans, which I eventually sorted, by lubricating them with Van Den Hul satellite oil, which is the best oil in the world (and above it!), but in the short term, I needed them to run fast, or my MacBook Pro (early 2011 17" model) would just cut out and shut down, so I downloaded "Macs Fan Control" version 1.4.12 - and it's great, you can do anything with them.

Even though I've fixed the initial problem, I've kept the program, exactly for situations like yours. Do be careful with it though, because if you make the fans run too slow to properly cool, you will have problems like cut-outs, and you might even damage your Mac.

A big help will be to sit your MacBook on a metal plate, to help act as a heatsink. On mine, the Aluminium unibody is great for that anyway, but really improves if I put it on a metal surface.

Hope that helps.