Associate found at Computex 2013 motherboard Asus A88XM-Pro, based on chipset AMD A88X (Bolton D4) and equipped with a CPU socket, Socket FM2b.
The motherboard can work with processors Socket FM2 +. Thus, Socket FM2b is Socket FM2 +. Backward compatibility with processors Socket FM2.
As you can see, the chipset AMD A88X is also new.