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I fixed it. I already had the intel turbo boost 3.0 application.

I had to change the bios clock from by core usage(default) to by specific core and the core ratios auto.

Then everything worked...

I wonder why my cpu(7900x) on rampage VI extreme never goes to 4,5Ghz turbo. I always see max 4Ghz in taskmanager when running a simple application.
In the bios the cpu is running 4.0Ghz and saying...