New B200 M4 blades can running on Intel v4 processors. You may see discovery issue if your UCSM firmware version lower than 2.2.7c. I hit that problem few days ago when I install a new M4 blade. The FSM hung on 58% a real long time and failed eventually.
You may see the failed task “Discover Bios Post Completion” with description “Waiting for BIOS POST Completion information from IBMC“. The new model is supported by 2.2.7c or later firmware. 2.2.8a is suggested firmware for new model.