Intel core i7 7th Gen Overheating

[GenHeDi]

Hello,

Recently I bought a TUXEDO Book BX1506 which is equipped with an Intel Kaby Lake CPU: Intel Core i7-7700T (4x 2.90-3.80 GHz Quad-Core, 8-Threads, 8 MB Cache, 35W TDP) processor.

After installing Gentoo and KUbuntu 18.04 LTS, I notice that I get a lot of overheating notifications in my Gentoo dmesg log. This happens mainly during the compilation of large programs (MAKEOPTS="-j5").

When I'm surfing under KDE with Firefox and looking at youtube films, then the fan always turns on (but do not get any dmesg notifications yet).

Dmesg snippet:

[bunder]

Try turning off turbo boost.

[GenHeDi]

Hello bunder,

I had a look in the directory butthis file does not exist in my installation

[bunder]

I think you might be missing CONFIG_X86_INTEL_PSTATE=y

Cheers
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[GenHeDi]

You were right, it was not set. I turned it into y and now I can turn off turbo boost.
Although after a reboot it is turned on again, how to deal with that?

Yesterday I forced a huge compiling job on this laptop but unfortunately I have still overheating messages in my dmeg.
Although way less than before.

I think that still other kernel parameters are not properly set yet, like "Processor Clocking Controle interface driver" is not set yet.
Is there a proper way to double check the necessary settings / value's? I followed the instructions of the Gentoo AMD64 Handbook.

Regards
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[bunder]

I wrote a script for this... https://github.com/bunder2015/scripts/blob/master/linux/no-turbo.sh

if you put it into /etc/local.d then it should run on startup, but you can also add it to cron so it runs periodically (as sometimes it can turn itself back on, my laptop does when I unplug/replug).
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[GenHeDi]

Thanks a lot,

I did put your script in my /etc/local.d and it works like a charm (after I put a .start suffix in the filename )

But after this modification I see still overheating messages in my dmesg.

Any idea how to proceed?
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[Jaglover]

Use distcc, reduce make instances, force powersave governor. Laptops are not made for compiling.
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My Gentoo installation notes.
Please learn how to denote units correctly!

[GenHeDi]

What is your advice regarding the "force powersave governor" part?

Regards,
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[bunder]

I haven't had to do anything other than turn turbo off. Are you sure your cooling is working okay?

This thing looks like it was made by Clevo. If you press Fn + 1 does the fan spin up to full speed?
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[GenHeDi]

Fn + 1 does the fan spin up to full speed > confirm

I have also KUbuntu 18.04 LTS running on same system. When I'm running KUbuntu there are no logs in dmesg of thermal heating at all.

Regards,
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[Hu]

When you run Kubuntu 18.04, are you using the system in a way that keeps the CPUs running at maximum load for minutes or hours at a time? The binary distributions generally don't put nearly as much load on your system as a big Gentoo emerge job.

[GenHeDi]

Your right, I don't do heavy stuff on KUbuntu like the emerge jobs on Gentoo.
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[fxkrait]

I have a Clevo laptop as well, and have no issues with my CPU overheating.

Laptops are just fine for compiling all day.
I can turbo (not at max) and stay under 90 C.

Look into re-applying your thermal paste with "liquid metal", it will drastically improve your cooling capabilities.
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A great painter does not content himself by affecting us with his masterpieces; ultimately, he succeeds in changing the landscape of our minds. Once a miniaturist's artistry enters our souls this way, it becomes the criterion for the beauty of our world.

[devsk]

Try undervolting your CPU. See: https://github.com/georgewhewell/undervolt

I am doing a -140mV undervolt on my Dell XPS and its plenty stable. It may sound counter-intuitive but undervolting the CPU actually gave me 15% more performance from the CPU because temperature thresholds where throttling happened, were achieved with a higher CPU frequency.

BTW, throttling is a protection mechanism. CPU microcode just degrades the performance by few hundred Mhz's to let the CPU cool down. So, as such its not a longevity hit on the CPU as much as its a peak performance hit.

[n05ph3r42]

I can also recommend to force powersave manager( disable all the rest in your kernel) + install thermald. Recently i added new info about it to power management r page: Also, for Intel processors used in laptops since 2011 you may want to enable