ASUS Sabertooth 990FX R2.0 - $80 (State College)
This board is used, was using it myself until the network adapter went out in it. Since swapped it out for a new board. It will support AM3+ Chips, but I don't have the original back plate for the CPU, you'll have to liquid cool it with a single loop cooling unit and you'll need a wifi card for it. Would hate to throw this out for the network issue alone so I'm giving it away at the price point.