Not sure how much common knowledge this is but if you have a powerful MacBook Pro running Windows via BootCamp, you most likely have noticed that there is a problem with fans running way to much and too loud. Especially if you have a dedicated GPU in it.
If you can't find another way to solve the problem, I would recommend trying to lower the "Maximum Processor State" in Power Options under "Processor Power Management". Default values are usually 100% which will make the CPUs "turbo mode" kick in quite often which usually makes the fans go crazy.
Just by lowering this value to 99% instead this problem has gone from very irritating to almost not noticeable on my 2015 MacBook Pro 15". Now the fans only kick in when they really should. And this is with 4980HQ CPU with AMD dedicated grapics and a the MBP connected to a 4K display.
Of course, there will be a loss of performance by doing this but not really something you would notice in day-to-day use, and you can always just switch to another Power Plan and get all performance back. Depending on your success with this you might want to consider changing some options for the dedicated GPU also but in my case the real kicker is the Maximum Processor State.
Results of course vary with the specific model you have and it's configuration, but overall I guess that this should work on all modern MacBook Pros (and other Macs as well). You can use a tool like HWMonitor to monitor fan and CPU behaviour, especially notice how the max values of the CPU clocks change when you go from 100% to 99% (you need to restart the program after changing to get updated "max" values or select "Clear max/min values").
Let us know if this works for you
If you can't find another way to solve the problem, I would recommend trying to lower the "Maximum Processor State" in Power Options under "Processor Power Management". Default values are usually 100% which will make the CPUs "turbo mode" kick in quite often which usually makes the fans go crazy.
Just by lowering this value to 99% instead this problem has gone from very irritating to almost not noticeable on my 2015 MacBook Pro 15". Now the fans only kick in when they really should. And this is with 4980HQ CPU with AMD dedicated grapics and a the MBP connected to a 4K display.
Of course, there will be a loss of performance by doing this but not really something you would notice in day-to-day use, and you can always just switch to another Power Plan and get all performance back. Depending on your success with this you might want to consider changing some options for the dedicated GPU also but in my case the real kicker is the Maximum Processor State.
Results of course vary with the specific model you have and it's configuration, but overall I guess that this should work on all modern MacBook Pros (and other Macs as well). You can use a tool like HWMonitor to monitor fan and CPU behaviour, especially notice how the max values of the CPU clocks change when you go from 100% to 99% (you need to restart the program after changing to get updated "max" values or select "Clear max/min values").
Let us know if this works for you
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