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I am running Ubuntu on my Dell latitude E5570, but it heating up quickly after booting. On the other side, running Win 10 it was quite cool (CPU 40 C or below). The part of the cover below which is SSD is also quite hot with Ubuntu...

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  • Do you have the processor microcode in use? Go to System Settings → Software & Updates → Additional Drivers. There is likely an "Unknown Device" with the options either not to use it or to use some Intel firmware/microcode stuff. Make sure that the latter is selected. – Byte Commander Aug 5 '17 at 20:25
  • There is no "unknown device" – sawic Aug 5 '17 at 20:34
  • Are there any items in the list? – Byte Commander Aug 5 '17 at 20:35
  • Nope. It's empty – sawic Aug 5 '17 at 20:40
  • For my Dell Inspiron 17R 7720 SE I had all kinds of problems until I found and installed TLP. Avoid I8Kfan like the plague as it causes machine to pause every 10 seconds. You should also have Thermald and Powerclamp installed. – WinEunuuchs2Unix Aug 6 '17 at 12:29
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The Good news and the Bad news about overheating

The good news is there are lots of answers in Ask Ubuntu dealing with overheating so you should be able to find a combination of solutions to deal with the issue.

The bad news is there are lots of answers in Ask Ubuntu dealing with overheating so there are lots of other users with overheating issues.

Summary of experience with Dell Inspiron 17R 7720 SE

Each laptop model can require different "tweaking" for CPU frequency, Turbo Boost, Hyper-Threading, Fan Speed and battery life. The answers I've written are based on my Dell Laptop. Here are the answers I've written for others with overheating issues:

Which is the best link?

From the answers I've written I feel Stop cpu from overheating is the best link for you. However I've included all the links because answers written by other users will probably be helpful and some might even be better for your laptop.

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