Question / Help Fans run constantly when OBS is open, is there a setting making it run like this?

J

JoJo

New Member
Just curious if there's a setting I can change that makes my fans chill out when i'm not even recording or anything else. Just sitting idle with OBS open makes my Macbook Pros fans constantly run, is this just normal?
 
No, I would say that's not normal. You don't have recording active by accident?

Default action is basically copying the recording area to the preview window. If that's enough to make your fan go crazy? ...
 
keybounce said:
No, I would say that's not normal. You don't have recording active by accident?

Default action is basically copying the recording area to the preview window. If that's enough to make your fan go crazy? ...
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No not recording, just having it open makes em speed up, and sometimes the CPU is hitting 90% while it's just sitting idle with nothing else being used. Right now i'm sitting idle and it's jumping between 40-60% on my activity monitor, but in the program it says 8% which is obviously much less lol.
 
Experiencing the same on two different MacBook Pros, 2015 ond 2019. In OBS it says 9%, in activity monitor it says 70%.
Whats up with Macs power management? Really wondering why, and would be great to have an answer. A pollution even better.
 
me three! my macbook pro 16in (2019) fans jump to 60%, and the graphics processor as well as the core i9, are at 10% of their available capacity but the fans go effing crazy when I open OBS...after about 10 seconds of streaming or anything for that matter. Even though the capacity says that it's only 10%. I run FCP all day long and the fans barely get touched. I run OBS, Jesus...and the fans go wild. WTaF ????
Oh and I'm not recording either. I'm just streaming 1080p to YouTube.
 
MagicMIles said:
me three! my macbook pro 16in (2019) fans jump to 60%, and the graphics processor as well as the core i9, are at 10% of their available capacity but the fans go effing crazy when I open OBS...after about 10 seconds of streaming or anything for that matter. Even though the capacity says that it's only 10%. I run FCP all day long and the fans barely get touched. I run OBS, Jesus...and the fans go wild. WTaF ????
Oh and I'm not recording either. I'm just streaming 1080p to YouTube.
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Are you using the native HT encoder for video or x264 default encoder. That can make a lot of difference in how hot things get.
 
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Same problem here running older Mac Pro 2013 (trash can). CPU is hitting 80-90% in activity monitor and I have had a couple of crashes while streaming. My machine does not have an option to select hardware encoder
 
I am considering upgrading my CPU in my 2013 Mac Pro from 4-core to 12-core but nothing sure it would help. Thoughts? Alternatively, I am thinking about building a PC for streaming.
 
Cander328 said:
I am considering upgrading my CPU in my 2013 Mac Pro from 4-core to 12-core but nothing sure it would help. Thoughts? Alternatively, I am thinking about building a PC for streaming.
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I am a mac guy through and through, but you'll be much happier using OBS on windows
 
I am new to OBS and having the same problem. My fans are running so loud that you can hear the whooshing noise in the background of my Facebook live streams. Does changing the encoder as suggested above help with this? This is on a 2016 MBP with 16 gigs of RAM and a 2.9 Ghz Intel i7. And I don't have to be doing anything. Within a minute or so of launching the app, my fans are going crazy and OBS is gobbling up 20% of my CPU.
 
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rebbi said:
I am new to OBS and having the same problem. My fans are running so loud that you can hear the whooshing noise in the background of my Facebook live streams. Does changing the encoder as suggested above help with this? This is on a 2016 MBP with 16 gigs of RAM and a 2.9 Ghz Intel i7. And I don't have to be doing anything. Within a minute or so of launching the app, my fans are going crazy and OBS is gobbling up 20% of my CPU.
Click to expand...
Are you using the Apple Encoder? Have you set that encoder for both Streaming and Recording? Is your Canvas set to 1280x720 and your audio to 128? If you in studio mode have you set "Disable V-Sync"? Are you using Window Capture?

These are the first things I'd check on a mac.
 
Tangential said:
Are you using the Apple Encoder? Have you set that encoder for both Streaming and Recording? Is your Canvas set to 1280x720 and your audio to 128? If you in studio mode have you set "Disable V-Sync"? Are you using Window Capture?

These are the first things I'd check on a mac.
Click to expand...
Again, in which direction?????? Should these settings be on or off to make improvements? Your answer is vague!
 
Tangential said:
I am a mac guy through and through, but you'll be much happier using OBS on windows
Click to expand...
I'm a blue blooded Mac guy too, and have been sespecting OBS on Windows will be a better experience. Any idea if its software or hardware. Basically, could you install Windows partition on a Mac and see improvements? Or is it more to do with the hardware?
 
InfluxxMedia said:
Again, in which direction?????? Should these settings be on or off to make improvements? Your answer is vague!
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I‘m talking about using the HW encoder for the stream and for recording. It only appears as a choice on that part of settings. OBS doesn’t really give you choice on encoding input video. That depends on the drivers for the capture device.
 
InfluxxMedia said:
Again, in which direction?????? Should these settings be on or off to make improvements? Your answer is vague!
Click to expand...
Using a GPU based encoder will take the load off of the CPU and help it run cooler. X264 is a pure software encoder that only uses the cpu (and a lot of it.)I don’t understand what you mean by direction. This is for output. You can’t control encoding for inputs.
 
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