>>106288713
Hi anons. Following up on an issue I brought up a few days ago here regarding a new build with some pretty high DPC latency with onboard ALC4080 audio. LatencyMon was showing anywhere from 2-4 ms DPC latency, which was producing some crackling during Windows sound prompts, and a fairly noticeable audio lag in game. It was driving me nuts. Anons were helpful with suggestions, and it was narrowed down to the NVIDIA driver which has known DPC latency issues.

I was able to resolve it at least partially and thought this might help others.
A few things I tried that either didn't help or helped latency a bit, but didn't stop the crackling (and apologies if I explain something incorrectly, I'm not a super /g/ brain):
>BIOS & Firmware updates
>Driver reinstalls
>Disabling NVIDIA HD Audio and other unused audio devices
>Disable NVIDIA overlay (never had it on to begin with)
>MSI Mode Utility, tweaking USB controller interrupt priority to High (this helped a bit)
>Adjusting core affinities, setting GPU to cores 0-10, and USB Audio core to 11, plus other configs (didn't help)

I finally caved and decided to get a dedicated soundcard. Installed, and while the latency still shows up, the crackling is gone and there's no perceivable latency in-game. Audio quality is noticeably higher than onboard as well, so I'm pleased with that. Again, I'm not a pro but according to GPT the issue is resolved because:
>the new PCIe sound card has its own lane and its own processor for sound. Even though the NVIDIA driver is still being slow, your audio doesn’t have to wait behind it anymore.
Overall I'm satisfied with this fix for now. Hope this helps other anons that will possibly run into this issue.