Zbook 15 G5 Temperature problem

[Airhaun]

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@MatHaldimann wrote:

This is a very useful workaround.

But I would not consider it a solution. Even when turbo boost is deactivated (max power state = 99%), cooling strategy is passive, there is virtually no CPU load (< 5 %) and the CPU package temperature is at only 50 °C, the fans still run at 3000 rpm on my ZBook Studio x360 with a Xeon E-2186M. This is much less noisy full fan speed (about 4800 rpm), but still truly annoying.

Of course you can further reduce the CPU clock speed, but you do not buy an expensive and heavy mobile workstation to reduce its performance to ultrabook level. And at least on my ZBook, I never manage to make the fans stops, not even at clock speeds below those of fanless ultrabooks.

MacBook Pros for instance (also 45 W TDP like the ZBook) allow much higher CPU temperatures before activating the fans. And they stop the fans rapidly as soon as there is a little less CPU load. 

Maybe one could tweak the HP fan management to allow for higher package temperatures? Does anyone know of a reliable way of doing so? Many thanks!

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Well articulated.  I have a Zbook G2 15 and have been struggling with this problem for a while now. The fan runs so loud, it triggers a 'take caution' and prepare to act' primal sense. The kind you get when you notice something is about to fall or a washing machine spinning with an unbalanced load. The surface just below the keyboard gets so hot, it begins to burn the skin on my palms of my hands. I've used HWMonitor, Core Temp,  Open Hardware Monitor, Notebook FanControl and propping the laptop on a small book to allow for more airflow. 

70-80 Celsius @ 25% CPU load is not acceptable.  My hope is HP will address the issue as reducing the performance is indeed not a solution. You don't buy a Ferrari and then restrict yourself to never going above 65mph.

[Arthur-c]

@Airhaun

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