Not sure why I got an MCE error related to ECC when my RAM is not ECC

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I’ve started with a reboot for now and will monitor to see if the system triggers this error again. If it does, I will try these options in sequence:

  1. Keep my BIOS as is (AGESA 1.2.0.2) and rock back to an earlier Kernel. BIOS with AGESA 1.2.0.2 never triggered these errors with kernel 5.15.6 or 5.15.7
  2. Keep kernel 5.15.12 and update my BIOS so I move from AGESA 1.2.0.2 => 1.2.0.5

If the errors persist across all these options… then it just might be time to RMA something… once I figure out if this is CPU or RAM.

EDIT: Interesting post I read @ Linux on 3700x: spontaneous reboots caued by MCE - AMD Community makes me think two things:

  1. This new ECC error is CPU focused
  2. It could very well be related to my other issue that I thought was resolved @ System auto-rebooted... mce: [Hardware Error] in dmesg related to CPU