Unfortunately, Amazon sent me a damaged motherboard... and I spent ALL day trying to debug it, or have a quick fix to try it out. But no luck! - Someone already killed the board or corrupted the BIOS. The only thing working was the BMC chip (for IPMI) that somehow had already a different username/password from the default ones (someone is not correctly testing returned stuff!!!). - so I can't do much more to recover it.

So, I will ask for a refund... I am now thinking about alternatives.