Nice you got it sorted out! Now, I wonder if the GbE MAC I found and told you was there by default, would have showed up before all teh above too, if you had cleared CMOS earlier?
Did you ever test that LAN, the one with ID B4 2E 99 3F 70 4A was already in GbEA region. I guess this answers your question
Those are there by default, in dump, before you inserted anything with eeupdate. GbE often holds MAC ID twice in some BIOS.

@Nozay33
This software is very powerful, please use it carefully.

Thank you for your software. As for the two MAC addresses, I guess there are two IP addresses. Each IP address needs to be assigned a MAC address ,may be IPMI??

Here is the official manual for you to download https://www.gigabyte.com/Server-Motherbo...#support-manual

@Nozay33
There are two MAC addresses because this interface can be used as network interface or BMC management interface according to BIOS settings.