BTC79X9 Core unlock

[Stahan]

Hello everyone, I'm new to the forum.

I have a BTC79X9 board
Socket 2011 (v1/v2)
Ami BIOS - mx25l6436E
bios
AmiBCP versions 4.53/4.55

Problem:
On any processor, there are only 2 cores (4 cores in total).
Setting the Active Core Processor via AMI BCP bricks the board (I have a programmer and a number of boards, so we can experiment).
What I've already tried:
AMIBCP settings + Firmware update - brick
I set ALL (Active core processor) to 0 - the cores clearly started working (this was evident from the heating), but the board won't boot.

There's no post-processor card yet, but it will be soon.