OK guys I've found the TDP setting, it was not easy to find at all and it was not as in the manual.
So I have 35, 45 and 65W setting. I ran prime95 and I could see the effect on the temperature, so it is working. However, the AMD Ryzen Master software reports that the CPU part is only taking 30-35 Watts in total, the GPU is probably the one pushing on 65 Watts but I was only doing CPU testing with Prime95.
With this setting, I'll be able to install the fanless CPU Cooler without worrying about temperature. However, for the power supply, even at 35 Watts, the fan was still spinning, slowly, but spinning. I had hoped that it would not at 35 Watts.