Supermicro X9 no BMC no VGA

Howdy folks,

I just purchased a used replacement board for an old-as-ass Supermicro x9 server. The VGA port was blocked off with a cap, I assume it is disabled. The management interface does not request an IPv4 address however, I do seem to have Router Solicitation coming from the MAC address so I guess IPv6 works?. None of the four nics reach out either. I don't have a GPU that fits the x8 slot. Anyone got any ideas how to proceed?