Running Mac OSX High Sierra 10.13.6.

Many times when I'm on a facetime call, and when doing other video things, my whole computer gets hangy about 15 minutes in. I'll throw in specs on my machine:

Model Name: MacBook Pro Model Identifier: MacBookPro9,2 Processor Name: Intel Core i7 Processor Speed: 2.9 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache (per Core): 256 KB L3 Cache: 4 MB Memory: 8 GB Boot ROM Version: SMC Version (system): 2.2f44 Sudden Motion Sensor: State: Enabled

I'm trying to pinpoint what the holdup is, since in the past it was able to do facetime well. Looked at it in Activity Monitor, but couldn't find any one culprit. I copied the console logs from that hour, and I'll look through it for more info. Just wanted to get the question started.

  • Does your MacBook get hot and/or noisy in this situation? Mar 26, 2021 at 10:25
  • It is hot. I know the fans are running too.
    – chrisroode
    Mar 27, 2021 at 14:35

1 Answer 1


I believe your MacBook is overheating, which will lead to throttling (automatic downclocking) of your CPU and GPU. While most Intel-based MacBooks do suffer from that to a certain extent, it shouldn't be triggered by a 15-minute FaceTime call.

  1. When using Activity Monitor.app, make sure to have ViewAll Processes enabled, so system processes are shown as well.

  2. You may use the app iStat Menus or Hardware Monitor to check the temperatures of your MacBook.

  3. It's possible that your MacBook is just dusty, which prevents proper airflow and therefore limits cooling. Here's a link to a video showing a (very thorough) cleaning process: Fixing My Filthy Overheating MacBook Pro. It's usually sufficient to just (carefully!) vacuum the dust from the fans though.

  • Thanks for the video link! I'm not too comfortable doing that myself, but i'll inquire about town to see if someone does that.
    – chrisroode
    Apr 12, 2021 at 16:27
  • 1
    Welp, I eventually did open it up and blow out some dust. The computer is running quite a bit better now. Thanks for the help! 2012 pro's are workhorses!
    – chrisroode
    Apr 19, 2021 at 16:14
  • @chrisroode Then you're welcome to accept my answer as solution. :) Apr 19, 2021 at 23:04
  • Oh snap! didn't know I could do that! and I figured it out...This is awesome!
    – chrisroode
    Apr 21, 2021 at 13:23

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