Look at this post for more detail and logs.
I think there is a problem with this kernel, (only with Kaby Lake ?)
In this post EricD say ECC is working with this kernel with Sandy Bridge EP.
Fortunately I'm not...
echo '0000:00:00.0' > /sys/bus/pci/drivers/skl_uncore/unbind
modprobe -v ie31200_edac
I tried but not working, skl_uncore is always used.
I tried to blacklist it and update initramfs, but again always used.
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor...
Can it be the source of the problem ?
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
Subsystem: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
Not really for X570, but I think there is an issue with the lasts PVE kernels.
pve-manager/6.1-5/9bf06119 (running kernel: 5.0.21-5-pve)
mc0: 0 Uncorrected Errors with no DIMM info
mc0: 0 Corrected Errors with no DIMM info
edac-util: No errors to report.