That board has weak VRMs and can't deliver enough power tho handle the FX 8350 under full load. About the only thing you can do without outright downgrading to a 95 Watt CPU is undervolt and underclock your CPU to get the power draw down to something similar to the 95 Watt 8 core FX chips. Even then that board is marginal and the FX 6300 is probably the fastest CPU that board should be running.
This is why you always check the CPU support list before buying, just because the socket is the same doesn't necessarily mean the CPU will work at all or work properly. With high power draw chips like the FX 8350, or more modern ones like the i9 9900k the board's power delivery system is also much more important, and that's why you don't pair...