I had to reset my BIOS settings after installing BIOS V0052 and reconfigured to my previous cooling settings (see my other recent posts) , still I experience now a totally new and unfortunately disturbing beahvior of the fan speed.
It starts in from low, nearly noise-less fan RPM and kicks-in with maximum fan speed in a second. Before I had of course also fan activity but it never kicked-in like a "saw-tooth" - see picture.
I have nothing else changed and use the machine as before...
Any idee what has changed in V0052 (EC?), fan policy and/or where to find any further informations or tweaks?