Greetings and welcome to the ROG Forum!
A few questions for you...
1) Do you have this problem when when you plug the head-phones into the back speaker output?
2) Do you have this problem if you use the computer case's HD Audio (vs. using the ROG Front Panel)
I just purchased the same parts that you have including the ROG Front Panel and the reports is that the ROG Front Panel causes noise/popping and other annoying sound effects. I won't get around to building this system till this weekend so I'll let you know if I have the same problem.
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For trouble-shooting tips see my blog at:
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http://thenerdbench.blogspot.com/p/bench-testing.html
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MB: Crosshair V Formula-Z • CPU: FX-8350 • GPU: Asus Matrix R9 280x • RAM: 8GB of Crucial Ballistix Tactical Tracer (1866)• PSU: Thermaltake DPS Thoughpower 750 Watt • CPU Cooler: Thermaltake Frio Advanced • Keyboard: TT Sports Challanger Ultimate • Mouse: TT Sports Black Element • Case: Thermaltake GT Level 10
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