3490b541__String_Buzz___Chart_Of_Causes__Possible_Cause
[Symptom] Buzzes When I Strum Hard Buzzing occurs when strumming or picking aggressively but can be silenced when playing lightly. [Remedy] Adjust truss rod. Set up instrument properly. Use heavier strings. [Possible Cause] 
Set Up Insufficient relief in the neck. Poor set up. String gauge too light.
Why Is My Guitar Buzzing? How To Fix Fret / String Buzz | Chart Of Causes
Possible Cause