Ryzen 5950x CPU folding odd behaviors

[pcwolf]

Greetings!

I have a few years F@H and now at 1.3 billion on Team Fark 2233

Odd behavior 1:
I run dual NVidia cards and 16 cores / 32 threads folding. Occasionally my system will reset with a CPU core error.

Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 5: bea0000001000108
Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: TSC 0 ADDR 7fbdc4a4bae1 MISC d012000200000000 SYND 4d000000 IPID 500b000000000
Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: PROCESSOR 2:a20f10 TIME 1639063104 SOCKET 0 APIC 0 microcode a201016
Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: CPU 12: Machine Check: 0 Bank 5: bea0000000000108
Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: TSC 0 ADDR 8a3a8a MISC d012000100000000 SYND 4d000000 IPID 500b000000000
Dec 09 15:18:27 Ryzen5950X kernel: mce: [Hardware Error]: PROCESSOR 2:a20f10 TIME 1639063104 SOCKET 0 APIC 18 microcode a201016

Odd behavior 2:
In my attempt to halt the hardware errors and reboot, I will set the CPU folding to "Finish" Which the machine will do, but then my CPU temperatures spike! Seriously, WHILE FOLDING my CPU temp is ~50c. When I HALT FOLDING my CPU temp will run ~60-65c. Curious, I would never expect this behavior.

I run a Gigabyte Aorus x570s chipset, on ECO mode, with PBO disabled.

-Phil

[aetch]

Daft suggestion but have you done any stress testing with the likes of memtest86+ and prime95?

When I first built my Ryzen system I had a dodgy core. At the time I got away with adjusting the vcore until the failing core stabilized. I ended up replacing the motherboard about a year later, after my system crashed and rebooted three days in a row. I eventually worked out the VRMs were too weak for the processor.