High Sierra temperature and fan-speed very high at at 1% CPU usage

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oqendro

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Message 83905 - Posted: 16 Dec 2017, 17:20:16 UTC

Hi everyone,

I reinstalled the latest version of BOINC on the latest version of high sierra on a Macbook pro 15" 2017. I set the CPU usage to 1% on the BOINC manager preferences, but my fan-speed hovers at ~5500 and my cpu temperature is 70C+, as seen from SMC Fan Control.

Any idea what could be causing this?

Thanks.
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Profile Gary Charpentier
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Message 83908 - Posted: 17 Dec 2017, 2:18:42 UTC - in response to Message 83905.  

Hi everyone,

I reinstalled the latest version of BOINC on the latest version of high sierra on a Macbook pro 15" 2017. I set the CPU usage to 1% on the BOINC manager preferences, but my fan-speed hovers at ~5500 and my cpu temperature is 70C+, as seen from SMC Fan Control.

Any idea what could be causing this?

Thanks.

It isn't BOINC at 1%. Look at activity monitor and see what is running.
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Juha
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Message 83929 - Posted: 17 Dec 2017, 21:08:34 UTC - in response to Message 83905.  

Do you have any GPU tasks running? CPU settings won't have much effect on those.

If you don't know: open BOINC Manager, switch to Advanced View (View menu), Tasks tab and check Status column if any task says something like "Running (0.1 CPUs + 1 Intel GPU)". The GPU might be AMD or NVIDIA as well.

If you have GPU tasks you can quickly test if those are the reason behind the high fan speed by selecting Activity -> Suspend GPU. Temperature should fall pretty rapidly after that.

If you don't have GPU tasks then you'll need to do what Gary says and find out what process is using the CPU.
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oqendro

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Message 83938 - Posted: 18 Dec 2017, 16:45:52 UTC - in response to Message 83908.  

Activity monitor shows 8 processes "setiathome.8.03_x86_64..." each using ~95% of CPU.

After that its just excel/chrome, at under 5%

I suspended the GPU tasks in the advanced view but it didn't help.
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oqendro

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Message 83939 - Posted: 18 Dec 2017, 16:47:13 UTC - in response to Message 83929.  

I looked at the advanced view and suspended the two GPU tasks, but they were already automatically suspended because 'computer was in use.'

Doesn't seem to help.

Activity monitor shows 8 SETI processes working at 95% of CPU each.
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oqendro

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Message 83940 - Posted: 18 Dec 2017, 16:54:25 UTC - in response to Message 83929.  

I also checked "Snooze GPU" on the menu bar icon and the fanspeed/temp is still high.
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Profile Gary Charpentier
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Message 83941 - Posted: 18 Dec 2017, 19:33:48 UTC - in response to Message 83938.  

Activity monitor shows 8 processes "setiathome.8.03_x86_64..." each using ~95% of CPU.

After that its just excel/chrome, at under 5%

I suspended the GPU tasks in the advanced view but it didn't help.

Okay, check, do you have the manager set to "RUN ALWAYS" or "RUN on Preferences"? If it is always, that is exactly what it is doing.
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oqendro

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Message 83949 - Posted: 19 Dec 2017, 16:45:41 UTC - in response to Message 83941.  

I have it on "run on preferences", set to use max 1% of CPUs, 1% of CPU time, GPU disabled. I'm at 55-60C temp and 3500 fanspeed (2000 is normal for this Macbook pro)
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Profile Gary Charpentier
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Message 83955 - Posted: 19 Dec 2017, 19:43:37 UTC - in response to Message 83949.  

I have it on "run on preferences", set to use max 1% of CPUs, 1% of CPU time, GPU disabled. I'm at 55-60C temp and 3500 fanspeed (2000 is normal for this Macbook pro)
Doesn't sound correct. A dive into the log file should show what is going on. Or you could just do a clean install.
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oqendro

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Message 83984 - Posted: 21 Dec 2017, 17:26:31 UTC - in response to Message 83955.  

Now I'm operating at ~50C and normal fan speed with the same settings, GPU disabled.

Looks good for now. Thanks!
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noderaser
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Message 83987 - Posted: 22 Dec 2017, 2:33:12 UTC

At 1%, how long does it take to complete a task?

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Message boards : Questions and problems : High Sierra temperature and fan-speed very high at at 1% CPU usage

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