Hi. I had a Sapphire R9 280X Vapor-X, but it had coil whine so I got it replaced by a ASUS R9 280X DCIIT. Since then, when I play a game with my headphones plugged in my front case panel I have buzzing coming from them. I can clearly hear it. It's not from the headphones, I tested them. The buzzing is only when ingame. Any ideas?