Today i did some further tests.
- I disabled the Intel Turbo-Boost function in the UEFI/BIOS
- I installed the cpufreq-utils and set the governor to “performance” and “powersaving”
- I changed all power saving features in the UEFI/BIOS from “Enabled” to “Auto”
None of the steps above worked, the CPU always runs with maximum frequency:
On the left side of the graph you can see the CPU with Turbo-Boost disabled (= highest clock rates are 3600 Mhz), while the graph on the right shows the Turbo-Boost enabled (= highest clock-rates are 4200 Mhz).
The cpu usage was around 0.4 to 0.5% all the time.
As you can see, there are some minor down-clocks, but only on one core and not permanently. Moreover, those clock-rates only go down to ~3600 Mhz, while it should be 800 Mhz in idle state.
As the difference in power consumption between a Windows 10 installation with clockrates going down (~12W) and IPFire with all-time high clock rates (~20W) nearly doubles, i don’t want to put my new machine into usage as it runs 24/7.
Is there anything else i can do? Any ideas?
Thank you for your further assistance.