Wattage feels a bit high and when I googled it, according to some sources 5800X might use that much, but 5800X3D should use less and run with 1.2V while for instance my 3800X pretty much needs 1.3V for rasonable clocks. So I wonder if for some weird reason your BIOS treats 5800X3D as regular 5800X. I would go to BIOS and check CPU voltage. Also is your BIOS fully 5800X3D compatible? Upgrades available?
Some test programs like Prime95 can make CPU's very hot even if they function normally.
Also how old is you AIO? Any change it has gathered gunk in CPU block over time and simply isn't up to task anymore? Do you have some air cooler you could try to rule this out?
Are temps ok with games, 3DMark and such?
There is a chance IHS or CPU block is not 100% straight but for instance concave, so conact maybe suboptimal.
Could be many reason, or just a software making it hot. I would check voltages, try with another cooler if available and see how temps are with other software.
