Question Possible grounding problem on recent build ?

[Ardlantis]

I have recently built my first pc and while everything runs perfectly fine, I think I am dealing with a grounding error. I was getting massive coil whine from my RTX 3060ti when playing games at high framerates. It was loud enough to be hearable even with my fans at full blast. I thought it was a defective unit so I sent it back, and while my retailer didn't find an issue they replaced it anyway. I installed the new card hoping it would be fixed but I get the exact same loud coil buzzing from the gpu. At 120 fps it's really loud, at 60 fps it's totally gone. I also get buzzing on my aux outputs which I didn't have when I was running on just my CPU while my GPU was being replaced.

Especially that audio interferance makes me think it's a grounding error and not "just coil whine" (also because it's so insanely loud). I've built my pc in the fractal ridge case, which situates the GPU on a riser card. I wonder if it has anything to do with the riser card because I don't get that audio interferance without my GPU.

Does anyone know of some tests I could do to see if this is a grounding problem besides taking my entire pc appart and building it outside the case without the riser card? Are riser cards known to cause stuff like this? Cheers in advance, also for reading this slab of text

Edit: I've got everything hooked up to an EVGA 650w supernova GM SFX power supply

 

[Lutfij]

Welcome to the forums, newcomer!

If you think it's a grounding issue, you should feel a mild tingling sensation when you touch the metal part of your case and your feet are making contact with a (non-wooden, non-carpeted)tiled floor. You can resolve the issue by making sure the wall outlet the PC is hooked is grounded, if not, relocate to another wall outlet.

How old is he PSU in your build?
+
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard?

If you think it's coil whine, you will need to get a hold of an A4 sheet of paper, then roll it into a cylinder, then hold one end to the ear. The other end is then sued to probe for the source of the whine.

 

[Ardlantis]

Welcome to the forums, newcomer!

If you think it's a grounding issue, you should feel a mild tingling sensation when you touch the metal part of your case and your feet are making contact with a (non-wooden, non-carpeted)tiled floor. You can resolve the issue by making sure the wall outlet the PC is hooked is grounded, if not, relocate to another wall outlet.

How old is he PSU in your build?
+
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard?

If you think it's coil whine, you will need to get a hold of an A4 sheet of paper, then roll it into a cylinder, then hold one end to the ear. The other end is then sued to probe for the source of the whine.

Thanks for your reply, I am indeed new here so sorry for not including my specs right away. Here they are:

CPU: AMD Ryzen 5 5600G
CPU cooler: Noctua NH-L9x65
Motherboard: ASRock B550M-ITX/ac
Ram: A Crucial 2x8 DDR4 3200 kit (not sure of the exact make, I "borrowed" it from my dad's workplace)
Ssd: WD blue SN570 2tb
GPU: ASUS Geforce RTX 3060 TI Dual OC white
PSU: EVGA supernova GM 650 (sfx) (brand-new)
Chassis: Fractal Design Ridge white
OS: Windows 11
Monitor: An old Dell monitor running over displayport. It doesn't support high refresh rates.

Everything apart from the RAM and monitor is brand new, including the PSU. I'm running bios version 2.90 which is the newest for this motherboard I believe. I don't feel any tingling sensation when running my fingers across the case and I do know what to feel for, so I guess it's not a grounding issue then? Weird to get so much interference on my audio jack but I guess vibrations carry through (and the jack is horrendously isolated from other components). I don't have any grounded sockets in my house so I can't test that sadly. I tried the A4 paper sheet trick and the whine is definitely coming from the GPU. I've already played around with some different configs for the the dual 8-pin ports on the GPU, but to no avail. I'm getting more and more ready to take apart my pc and quickly build it up without the riser card, just to investigate one more angle unless you know any other things I could test?