power supply has to go.
the Corsair cx550m (black and gray label) or the Seasonic S12II 520W are my budget high quality suggestions. https://www.newegg.com/Product/Product.aspx?Item=N82E16817151094&cm_re=s12ii-_-17-151-094-_-Product
https://www.newegg.com/Product/Product.aspx?Item=N82E16817139147&cm_re=cx550m-_-17-139-147-_-Product
links are for example only shop around, not an endorsement for newegg
if you need more processing power to stream I would suggest flashing the motherboard to support Kaby lake and changing the CPU to an i7 7700.
more RAM
SSD