@Checker
1. Our Support team was not able to give you an answere? Can you explain the situation a bit please?
2. Oh, ok. I know that some people was able to fix this with high performance thermal pads with more than 10 W/mk. Other people are goint to put passiv cooler on the backplate or a water cooled ram block or something like that. We will offer later this year active backplate cooler.
4. With the volume, it may also be a subjective problem. Everyone perceives certain sound frequencies differently. Perhaps the sound frequency of the fans is simply "more unpleasant" or "felt louder" for you than with the Noctua. I would be able to understand that.