ucode 06-cf-01 fails to boot machine

[fanchen2]

With ucode 06-cf-01, I failed to boot machine into OS. just hang with black screen.
I tried all 3 versions in this repo 21000200, 21000230, 21000283, none of them can boot machine up.
But the one in BIOS: 0x21000070 works well. But it seems like this version is not in this repo.
My CPU:
CPU family: 6
Model: 207
Thread(s) per core: 2
Core(s) per socket: 56
Socket(s): 2
Stepping: 1

[hmh]

As far as I can tell from public documentation, this should be stepping A1 of a Gen5 Xeon Scalable processor.

https://edc.intel.com/content/www/us/en/design/products-and-solutions/processors-and-chipsets/eagle-stream/emerald-rapids-specification-update/identification-information/

Stepping A1 is not listed as a production stepping on the above documentation, so it appears to be an ES/QS stepping ?

[fanchen2]

@hmh Thank you for your response, yes, it is stepping A1, not production stepping, I have no idea about ES/QS.
But we can get the ucode in this repo, so it is not expected to work? or not expected be included in this repo?