Postby me@work » Sat Dec 26, 2020 20:32
Bad luck...
After you ruled out the memory modules and the CPU packages, the persisting error is located on the mainboard, I think, like you already assumed in the beginning. It's either the DIMM socket, the CPU socket, or the connections between them. Perhaps something got broken during the initial CPU replacement...
While reading through your iRMC log excerpt, I stumbled across the timestamps depicted.
You actually did update your mainbord's BIOS to latest 1.22, and iRMC to 9.62F, didn't you?
Does the mainboard operate flawlessly between the reported error incidents, or do you switch it on only from time to time, like at the times that are listed in the log?