F5F Stay Refreshed Software Operating Systems Increase fan speeds when idle on your MacBook Pro for better cooling.

Increase fan speeds when idle on your MacBook Pro for better cooling.

Increase fan speeds when idle on your MacBook Pro for better cooling.

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DroyTheSloth
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132
06-15-2023, 11:46 AM
#1
I've noticed the fans running high even when idle and the rpm not settling to zero in the temperature range. After resetting the SMCEP it worked temporarily before returning. I ran a full format, so it might not be that issue. It seems to happen only when Safari is open with one tab on Reddit. MacBook Pro 13 2017
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DroyTheSloth
06-15-2023, 11:46 AM #1

I've noticed the fans running high even when idle and the rpm not settling to zero in the temperature range. After resetting the SMCEP it worked temporarily before returning. I ran a full format, so it might not be that issue. It seems to happen only when Safari is open with one tab on Reddit. MacBook Pro 13 2017

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xXFirewitherXx
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878
06-30-2023, 02:24 PM
#2
No, the PRAM hasn't been reset. The activity monitor shows no resource-heavy processes.
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xXFirewitherXx
06-30-2023, 02:24 PM #2

No, the PRAM hasn't been reset. The activity monitor shows no resource-heavy processes.

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warningitsben
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06-30-2023, 08:37 PM
#3
Safari tabs often cause the kernel to use 115% of the CPU. Appreciate the advice, will give it a shot when I return.
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warningitsben
06-30-2023, 08:37 PM #3

Safari tabs often cause the kernel to use 115% of the CPU. Appreciate the advice, will give it a shot when I return.

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ditox95
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234
07-01-2023, 03:14 AM
#4
Kernel_task acts like the core operating system. It shouldn’t cause concern if it uses up resources. "Idle" refers to when these devices, like MacBook Pros, warm up easily due to minimal activity—just a few open tabs can trigger the fan to spin faster.
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ditox95
07-01-2023, 03:14 AM #4

Kernel_task acts like the core operating system. It shouldn’t cause concern if it uses up resources. "Idle" refers to when these devices, like MacBook Pros, warm up easily due to minimal activity—just a few open tabs can trigger the fan to spin faster.

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ProffesorFrog
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137
07-01-2023, 12:23 PM
#5
Just started browsing on Reddit and YouTube around that time. The fans didn’t slow down even after heavy use, staying around 3000-5000 RPM. This week I ran a full format with SMC and PRAM reset. After cleaning the hard drive but before reinstalling macOS, everything looks fine. Fans shut down after playing City Skylines and park at zero when it’s cool enough. Now I can browse again with fans off, which is great.
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ProffesorFrog
07-01-2023, 12:23 PM #5

Just started browsing on Reddit and YouTube around that time. The fans didn’t slow down even after heavy use, staying around 3000-5000 RPM. This week I ran a full format with SMC and PRAM reset. After cleaning the hard drive but before reinstalling macOS, everything looks fine. Fans shut down after playing City Skylines and park at zero when it’s cool enough. Now I can browse again with fans off, which is great.

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