HP EliteBook 8540w – Overheating issue

I have  HP EliteBook 8540w laptop, yes it is old but still kicking. But, there is  one problem, very often I face with overheating issue, it gets hot very bad in the left upper corner of the case, and fan works on high mode.

It was very strange because sometimes there is only web browser running and nothing else. I have checked all residual processes and applications that can run in the background, everything was clean. Then I said, ok, fan and vents gets dirty and cloggued with dust. I open the case, but it was surprisingly clean and fan was working just fine. Hm, strange!? Then I get the idea. It was a problem in power management, it looks like this series of EliteBook have this issue ( checked on another friends EliteBook and he has a same problem ). This is what I do in order to prevent overheating problem.

  1. Start CONTROL PANEL on Windows ( 7, 8,10 ).
    Control Panel
  2. Find POWER OPTIONS and start it.
    Open Power options
    Edit plan settings
    Change Advanced power settings
  5. In the list find PROCESSOR POWER MANAGEMENT, then find MAXIMUM PROCESSOR STATE and change values to 80 %.
    Processor Power Management
  6. Close POWER OPTIONS and close CONTROL PANEL, that it. After I change all this to BALANCED and MAXIMUM PROCESSOR STATE to 80 % I never faced with overheating issue again.

I hope that this tutorial was informative to you and thank you for visiting this website.

Bojan Markovic

Bojan Markovic

IT professional with almost 20 years of experience, mostly integrator of IT services in TV & Radio broadcasting and web based projects. Expert in broadcasting playout systems, video streaming services and SEO.

3 thoughts on “HP EliteBook 8540w – Overheating issue

  • February 20, 2018 at 8:26 pm

    Really awesome solution man…..I thought its because of old hardware.
    but it really worked.
    thanks alot 🙂

  • April 2, 2018 at 3:11 pm

    We have a couple of these laptops, one of which has recently begun to overheat regularly, despite being fairly dust-free. I’ve just followed your advice and hope for a similar outcome. Thanks for posting this.

  • October 12, 2018 at 3:32 pm

    This was the very important tip that solved my problem, thanks a lot!! So many others want me to take hardware updates – this is and was a very simple fix.
    I have a dual install on the Elitebook 8540w and I can say Zorin/ubuntu by default manages the power consumption / heat much better (out of the box) than Windows. With Zoin taks the machine also heats up and the fan is audible (actually indeed strange with simple downloading and installing software but OK) but once the task is over it returns at a normal low level.
    In Windows it almost seems like the system idle process which is at 80% is actually trying to fire the CPU to its max. Must be some sort of a CPU driver problem.


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