Severe audio crackling caused by high DPC latency on RTX 5070 Ti

Posted by mmweb0@reddit | buildapc | View on Reddit | 27 comments

Hi everyone,

I’m experiencing severe audio crackling that makes real-time audio unusable ever since I replaced my GTX 1660 Ti with an ASUS TUF RTX 5070 Ti 16 GB.

LatencyMon consistently reports very high DPC latency spikes on which clearly correlate with the audio crackles. (the screenshot is not mine, it's way more red in my case)

This has been extremely frustrating. I’ve been building and using PCs for decades, and I honestly feel like I’m back in the early days of PC hardware, when changing a component could completely break a stable system.
At this point, I can’t even play a simple MP3 file without crackling, while doing nothing more than web browsing or text editing.

What surprises me the most is that this happens despite NVIDIA’s reputation for having “the best drivers”. Seriously ? A piece of crap if you ask me...

My main use case is music production and general PC usage. Gaming is only occasional (triple-monitor sim racing, which is why I invested in this GPU).

I’ve spent roughly 30 hours troubleshooting, and here’s a (non-exhaustive) overview of what I’ve tried :

I’m probably forgetting some things, as this issue has been extremely time-consuming.

My setup:

At this point, I’m running out of ideas.
Has anyone found any workaround for those DPC spikes ? Direction to investigate further would be greatly appreciated.

Thanks a lot for your time,
Alex