DietmarP

Finally, I am using HWiNFO64. The app supports 0, 2200, and 4900 RPM. I have set the spin-down to 45 sec and a sound alarm for >= 85°C and I show an icon with the actual temperature in the tray which is typically around 60°C on AC and 50°C on battery. Peaks around 80°C only when I start several apps like Chrome and Photos or Outlook. At no time above 85°C. Turbo mode switched off, of course.

I am sorry, there is a misunderstanding. EC will not set 2200 RPM, only manual mode medium is able to set that fan speed. Consistency mode will lock in 3200 RPM (see screenshot above from today).

Thanks a lot for your answer. I see 4 fan speeds on my Dell, 0, 2200, 3200, and 4900. EC supports the RPMs in bold. I will check what I can do with the Task Scheduler. To be honest, I am looking for a "set and forget" solution but I see a risk in switching EC off. I always must keep an eye on the temperature.

Interesting. As stated above, on my 7590 EC normally selects 3200 RPM and that will be locked in by the consistency mode. Stupid idea: Now, Dell Fan Management sets (resets) the current settings at startup. What if the "reset" will be done every minute? That would keep the fans off if not needed.

That explains it. Many thanks for the quick reply. Yes, switching between Optimized and Cool sometimes, when the temperature is below 60°C, turns the fans off. FYI: I have asked the question in the Dell community in January, no answer up to now. https://www.dell.com/community/en/conversations/inspiron/inspiron-7590-thermal-settings-mismatch/65b3c607a51f722bfe80a4b0 PS: I was playing around with "consistency" mode, but that setting allows 0, 3200, and 4900 rpm, not the "silent" 2200 rpm that the manual mode allows.

Frist of all, thank you for the interesting report. The fans drive me crazy and it's good to know, that I am not alone. I have already renewed the thermal paste. The fans are off when Windows is idle now. I am using Dell Fan Management and have the following questions: 1. when I start my 3 years old Dell Inspiron 7590 the fans are running after a few minutes, but when I start Dell Fan Management in Automatic operation mode, they stop for a while. What does Dell Fan Management change? 2. Using Dell Power Manager (or Dell Fan Management), the thermal settings won't match. Quiet and Performance thermal setting seems to be same, and the fans are spinning at max. The best (silent) mode for me is EC fan control off, manual and medium ( ~ 2.200 rpm). The temperature is around 50°C.