Static noise issue with onboard audio and weird power cable

[elghinnarisa]

Aloha!
I got myself a question regarding the issue of static noise that I been having for a few months. It used to work perfectly attaching my audio stuff to the back of the motherboard. Then one day people on discord said they cant hear what I say, all they get is static.
Plopped things in to the front panel and its all good.
The issue now is, I also use the line in to get audio from my consoles in to my PC, so I can play on my PS4/switch while for example, on discord with some friends and have both audio sources in my headset. So far so good, except, the massive static I get from the back which of course is annoying on the line in (or microphone if plugged in back as well).

Now as I said, it used to work just fine since I finished this setup around the time of when the 8700k was released. It was not until ~6 months ago I got this problem, cannot remember making any changes.

However, what I have noticed is, if I grab the power cord at the back of my powersupply, and I push it inwards and hold it there, the amount of noise drops dramatically. And when I let go (or at least, stop pushing it) it comes back.

Here is a little example of what it sounds like, at 9 seconds I start pushing the plug harder against the power supply socket, and I later let go and as you can hear, the noise increases again.
Produce_0.m4a - Google Drive

Now my question is of course, what can I do? And why? Why would it be more noise or less noise just by forcing the power plug against the power supply socket harder? I tried with several different cables, also tried different wall sockets, with and without a power strip etc. without any change.
Of course getting another device for the audio, a sound card or a external one would most likely work but in this case I am curious as to why the amount of static I get depends on how hard I force the power cable in to the power supply, I find that quite strange.

 

[Ferather]

Faultily circuits produce RFI (see here), you can get a 9v battery near an old or maybe even new radio, if you connect it and disconnect it rapidly with wire near the speaker, you will hear noise.
Even faulty light circuits can reduce the speed of your internet (if wired). It sounds much like you have a faulty circuit, which is doing exactly this.

Try a new cable or PSU.

 

[elghinnarisa]

I forgot to respond here but I did end up actually solving my issues.
Which was as I expected, drivers.
I tried i dont know how many drivers but I found a version of the realtek drivers which did not have this issue, somehow.

I also went out of my way to disable the Nahimic stuff it came with because it interferes with how I want to do things.

There is a pretty significant difference between whatever drivers I used and the ones I currently use. There is still static, which is to be expected. But now I have to crank the volume up to ear bleeding levels to just about hear it. Not like before when It was there constantly.

Why there would be such a difference between drivers, heck if I know.

 

[Ferather]

Not expected, still good result.