90°?!?! Please check your CPU cooling!

Whats the problem with

I spend a whole night with my 7700k overclocked to 19% to 5 Ghz 5 h at full load with 90* to 94*. This never made any problem or crashes…
Bought now a new pc for 4000 €, AMD 5900RYZEN… just sendet iback… only problems… beginning with USB…
Now waiting for my returned New Pc with INTEL of corse… Again…