Why?
It supports DDR3 RAM up to 1600MHz speeds, and is fully compliant with PCI-Express 16x speeds for GPU's... What would make you think the motherboard would possibly be a bottleneck?
It fully supports your hexacore 1100T.
Oveclocking wise, its hard to say, as every setup is different, and what works for someone else may not work for you. However, with the right cooling, a decent power supply and tweeking, 4+ GHz is reasonable for the AMD hexacore. The key will be with keeping temps down, as the thermal cutoff is fairly low on these CPUs.