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I have a 13900K and I am affected. Out of the box BIOS settings cause my CPU to fail Prime95, and it's always the same CPU cores failing. Lowering the power limit slightly will make it stable. I intended to better refrigerate the CPU and change the power limit back to the default and if the problems continued I would RMA the CPU, but now I'm not so sure that the BIOS is not pushing it beyond the operating limits.

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Can I ask what mobo vendor? Do you know what power limits the BIOS was targeting that caused the error?

On my Asus/14900k, it was uncapping PL1/2 and I saw absurd temps and power every time anything even touched the CPU. I programmed PL1/2 to 125/253w per Intel ARK and everything normalized.

I did not do Prime95 at the insane default power limits but I suspect similar.

MOBO is MSI, setting was "cpu cooler tuning" which was set at 4096W and I had to change to 253W (the limit according to Intel)

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