If you are worried about noise then you'd also have problem, the reason: The FX - 8320 will be at safe temps depending on the cooling system of the cabinet make sure you have at least one intake and one exhaust fan otherwise you'll start to get warnings.
Also since it will heat up due to the cooling performance of the cabinet (depends which one you have) the stock fan will start to run at 5.4K RPM+ and make a jet engine noise.
If possible mind telling us what cabinet you have?
You also might be better off getting an i5 4570 or a 4440 and a inexpensive new mobo.