Zbook 15 G5 Temperature problem

[SuperFlyBoy]

Hi again Andreas,

Thanks for the information - what chip are you using?

My x360 G5 has the Xeon E-2176M...

Thanks!

[MatHaldimann]

I have a Xeon E-2186M and it stays stable when using -70 mV undervolting. When undervolting it even more, the system shuts down without any warning occasionally. But every chip behaves differently.

With this undervolting and a max turbo ratio of 42, you can mostly limit the fan speed to a relatively quiet speed of about 2700 rpm using NoteBook FanControl. (Under heavy load, fans will of course ramp up to 4800 rpm. This is unavoidable with the poor cooling system.)

[AndreasK99]

i7-8650U

[SuperFlyBoy]

Do you use the Intel undervolting program?

[MatHaldimann]

No, as AndreasK99, I prefer ThrottleStop, which is a very flexible and efficient tool that allows you granular control over all aspects related to performance and power consumption.

[AndreasK99]

Also, Intel don't support all CPUs with their XTU application so it's sometimes a shot in the dark when installing and even updating whether they will add/remove support for the CPU. Throttlestop is a bit more daunting when you first open the app due to the number of numbers and settings but it's overall better as it gives you more control IMHO.

[AndreasK99]

@Jmcoca if you are comfortable with doing some minor 'surgery', i would suggest you may want to try re-pasting the stock thermal compound on the CPU and GPU. I did this and it helped with the wild temperature swings.

I have also purchased some thermal pads and placed them between them on the heatsink/heatpipe assembly directly above the CPU so that in makes contact with the chassis when it's closed. this way the chassis becomes another heatsink.

[SuperFlyBoy]

I would appreciate if you could PM the details of how to setup ThrottleStop - thanks!

[SuperFlyBoy]

@Andreas - I also bought a whole bunch of cooling pads - but didn't find the room for them to fit under the bottom cover!

(I was trying to keep the M.2 drives cool...)

I guess I'll try your solution and see if I see a temperature reduction...

[IT-Velho]

Thanks for solution 🙂

In iddle state temperatures was about 95°C, now it is about 60°C(58-62).

Good fix, but HP MUST fix this problem in new BIOS update.

My notebook cost 1900€ without VAT in Finland, so it MUST work good without limitations.

Regards,