Hello, I am having trouble isolating what is causing static in my headphones. It is only coming out of the right channel, and happens regardless of whether I plug the headphones into the front panel, rear panel and even happens with a USB DAC. I even plugged it into line in and line out ports, anything a 3.5mm could plug into and all the ports create the same static noise in the right channel. When the computer does more intense tasks the noise level will go up, and in certain games the noise changes to a low engine whine sound. I even purchased Schiit audio's "USB Decrapifier" and no change. I live in an old apartment and the outlets are not grounded, this could be the problem, however when I plug my phone into the dac/amp setup I have no noise so even though the amp is connected to the same outlet only the PC creates noise.