Spend literally every free Moment in the last Time to tweak every Bit out of this b*tchy Setup... what a Struggle. The "CPU Cooler Bottom"-Thermal-Probe had no really Contact to the CPU itself. It was touching the Coolerblocks Bottom and one Edge of the Heatspreader; CPU-Temp was 5°C+. The CPU was every Time at positive Temperatures, even idling for 10 Minutes+. Video can be found on Stage2-Result (3D Mark 99 Max) and Stage3-Result (Cinebench 2003) of this Round.