Do you only have the motherboard?
Do you also have ram, case, psu, and the rest?
The CPU-Z does not seem to identify the motherboard exactly.
Since the only manufacturer ID is Intel,
I suspect you may have an old dell or hp workstation which can be bought cheaply these days. Such vendors would have bought the motherboards in bulk directly from Intel, hence the lack of an ID.
The Xeon ES-2667 v2 can be bought on ebay for about $40.
It could work. But, games depend on good single thread performance, and the single thread passmark rating of that chip is 2017.
By comparison, a new $60 G7400 processor single thread rating is 3085.
Even with only threads, the G7400 is possibly a better gamer.
I would really suggest stronger though to...