I want to first staff off appologizing as this is my first post and it's unfortunately a tech support request. I've always read Hard Forum but haven't registered. My Current PC specifications are as follows; i7-8700K Gigabyte Aorus z390 Ultra 32GB(8x4) DDR4 Corsair Vengeance LPX 300MHz C15 EVGA RTX 2080 XC Ultra EVGA SuperNOVA 1000W G1+ Samsung 850 and 860 EVO SSDs Any other specs I can provide if needed. The clock is currently only set to Turbo Boost with an XMP Profile. The problem I am currently running into is that I receive popping noises as well as crackling and what I believe are buffer underruns. I can reproduce the pops by changing my sound volume with the slider. At the beginning of the windows sound I get a pop and the sound plays. If I let the sound play I do not hear a pop when it ends. If I end the sound by clicking on the desktop and closing the window a pop will sound when the audio ends when the window is closed. If I'm talking in Discord the discord mic open/close sound will play fine but when the person starts speaking and stops speaking there is sometimes a pop. When moving around a video on YouTube or other sites and clicking in various points in time in the video a pop will sound before the new audio starts playing. I also receive crackling/underruns in games, this I was able to reproduce in GTAV. I have tried many things, memory testing, fresh windows 10 installs, etc.. The hardware/peripherals I have tried to exchange have been; Asus Maximus X Code S, Soundblaster Z audio card, Corsair HX750 PSU, FiiO E10K DAC/AMP, Sennheiser 373D Headset, Sennheiser 569 Headphones, Beyerdynamic DT990 Pro Headphones, Creative speakers. I am honestly at a loss for words and at my wits end. I really hope I'm just overlooking something completely simple.