ccp 0000:04:00.2: SEV: failed to INIT error 0x8003


Aug 27, 2019
Good morning everybody.
Since last week, whenever I reboot or shutdown then power on my Proxmox server I get this error.
Can anybody help me decipher it?
Not entirely sure what it is, but last week I upgrade the BIOS on my Supermicro Motherboard M11SDV-8C-LN4F
AMD Epyc 3251 SOC with 2 dimms populated of 32 GB ECC Rdimm.
However, I think I updated the BIOS on th 26th and I happened to be going through the logs after seeing the Proxmox boot error.
Proxmox still runs and we've been using it all week, but I am trying to sort out this error.

Last week, on July 25th, I also logged a Uncorrectable ECC / other uncorrectable memory error @DIMMA2 - A
in the Systems Events log.
I have been trying to run the Memtest86+ 5.01 bundled with Proxmox during the night when the their operations is closed but so far can only manage 2 passes and up to test 10 at the 26 hour mark.

When it happened last weekend, I actually got
Proxmox Hypervisor showing SEV Uncorrectable ECC Error.

I saw somewhere there it could be a BIOS setting related as well.

Any insight would be much appreciated.
Thank you so much.
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