Hey Lugia thank You v much for ur thoughts
and hello to everybody else who stumbles upon my misery,

I am currently at
1452 mA +12V | 830 mA -12V | 0 mA 5V

Thats the Case I have:
Intellijel Designs - 7U Stealth Case (104TE/TPS80W MAX)

https://schneidersladen.de/de/intellijel-designs-7u-stealth-case-104te-tps80w-max-inkl.-kaltgeraetekabel

Power Brick :
https://schneidersladen.de/en/intellijel-designs-mean-well-90-w-power-brick-incl.-power-cable

I think the problem might be the beads that would be bad I will trouble shoot the whole system again today.
The noise-high frequency Sound only appears when I patch something into beads input.
like Plaits, but I give plaits no trigger for example.
When I trigger Plaits, the tone disappears nearly but its still audible, but it does come back fully after a short time.

I tested it like this.
Still there
https://www.dropbox.com/s/sdovpdyr1lyb6bn/IMG_2098.jpeg?dl=0

Thought my case must be the Problem...

But I have to Point out I have already tested it in this Modular Case
(Intellijel Designs - Palette 62)
https://schneidersladen.de/de/intellijel-designs-palette-62

Still there...

I tried with this Power supply in my old skiff :

https://schneidersladen.de/de/4ms-row-power-45

But to make it audible I had to go thru my Vermona and Intellijel InOut

I then didn't hear the high tone, but wow that was noisy.

I live in an old shit DDR building my the electricity be the problem? I don't think so :/

I will try everything again.
I have the Digital Modules-Fx the Databender for example
There is no Problem with this...

If its still there I will try out my Mutable beads at a friends place in his case.
As the Sound was still there when I unplugged everything else and only kept in a few modules at a time,
I think the power consumption might not be the problem.

If anyone has an idea what I can also try
would be appreciated :)

j.manuel