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Electric Buzzing Noise? REALLY strange!

20K views 24 replies 16 participants last post by  .667270  
#1 · (Edited)
I cannot decipher for the LIFE of my where the electric buzzing noise is coming from, but it is NOT EMF coming through my speakers. That much I have concluded, but whenever I play a game, run a GPU stress test, or move my mouse cursor (weird right?) I get an electrical buzzing noise. The noise is emitting from somewhere in my Lian Li 011D case and can be heard the second I remove the side glass panel. There is no noise if I'm just browsing websites or typing, but the second I move my mouse around or launch a game or run a benchmark like Port Royal it's audible. Its really subtle, around 20db or less, but its constant whenever anything is moving on my screen. I have also concluded the noise is NOT coming from my monitor either. I just re-built my waterloop and the issue occured, it was not present before the re-build. During this recent upgrade I replaced my factory OEM 600w 12vhpwr cable with a Cablemod white one (it has no splitter it's just straight-up 12vhpwr - 12vhpwr), replaced the GPU waterblock with a newer one, and replaced my CPU waterblock with a different color. This entire issue has me absolutely puzzled, and I hope somebody else out there has had this issue and was able to resolve it. I cannot be certain if the noise is coming from my motherboard or GPU, the sound itself makes geo-locating its origin quite difficult. I also know it's not my fans because I have stopped those 100% and the sound still occurs. PLEASE HELP!

Lian Li 011D EVO
Lian Li AL v2 Fans
ROG Maximus z790 APEX
13900KS delidded
2x24GB G.Skill 8000 MT/s Memory
2x2TB Samsung 990 EVO
MSI Suprim X RTX 4090
MSI MPG A1000G PSU

EK Reflections2 Distro Plate
EK Velocity2 CPU Direct Die Block
EK Quantum Vector2 RTX 4090 TRIO Block
14mm Acrylic Tubing
Satin Titanium Fittings
Cablemod Cables + 12vhpwr cable

Video of Buzzing
 
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#2 ·
…coil whine?
 
#3 ·
coil wine from what? I said its NOT my fans. It only occurs during gameplay or video/interactive media type stuff.
 
#14 ·
Coil whine doesn't usually come from fans (at least in my experience). It's something vibrating, the frequency of which will often increase as load increases, which is why you hear it when the component (possibly GPU) is loaded but not when idle. Most common culprits are either GPU or PSU although motherboards can do it too (and I had an old CRT which squealed constantly...)

If you changed the block to notice it, it is possible that either a) you knocked something slightly during the swap and that moved it sufficiently to start it off, b) the old block put pressure on the vibrating component which muffled it or c) the new block is touching it and has a harmonic which is more audible. Or something else. I can't listen to the vids right now, will try to do so if I remember later.
 
#5 ·
coil whine FROM WHAT though? I dont have any fans on my GPU because it's within a waterblock. I did not have this noise before I re-built my PC yesterday, all I did was put the GPU into a new waterblock. I'll try to record the noise but it may be difficult to capture on phones microphone. I'll try though.
 
#6 ·
High frequency noise are very hard to pin point because they reflect on the case and is like is coming from everywhere. Personally I manage to live with electrical noises coming from my PC, EVERY electronic device makes some times of high frequency noise. Some are more noticeable than others.
Coil whine is NOT generated from the fans. Is from the inductors switching at high frequency
 
#8 ·
Well you give a good insight there. Some PSU cables has in-build capacitors that help reducing the coil whine generated by the VRM. Problably "cablemod cables doesn't the capacitors and the coil whine is more noticeable now.
Try using the stock PSU cables and see if the problem remediates
 
#10 ·
Well you give a good insight there. Some PSU cables has in-build capacitors that help reducing the coil whine generated by the VRM. Problably "cablemod cables doesn't the capacitors and the coil whine is more noticeable now.
Try using the stock PSU cables and see if the problem remediates
I see that's great insight! Let me swap out the Cablemod GPU cable for the OEM GPU cable.

The other cables were Cablemod from Day 1. The only cables that I changed were the GPU cable.
 
#11 ·
Coil whine for sure, it has nothing to do with fans, it's a buzzing noise usually happens when load is put on to the electrical components of a GPU/PSU it is very common & not considered a defect by manufactures.
I have it too, I had it on my old PC as well you just have to live with it, some people are lucky & get minimal whine.
 
#13 ·
It never existed before yesterday though? This is the same GPU I have been using for 6 months. I'm still not 100% sure it's the GPU. I'm probably 50% sure at this point since I cannot pinpoint WHERE the noise is actually emitting from. The only thing I know is yesterday I tore my computer down entirely, rebuilt it back, replaced the GPU cable with a white one, replaced the GPU waterblock (Alphacool) and Swapped it for an EK one in white, and BAM loud noise. Check out this video as I did my best to capture it without the noise and then with the noise:
 
#12 ·

This link is to my YouTube Video of the issue.

Hope that sheds more light on the problem
 
#17 ·
I'm pretty sure you need to know what coil whine is, because it really looks like you're pretty lost.

source:

What causes high-frequency noise (Coil Whine)?

When the system loading changed, the electrical current changes under the low performance of GPU. While the current flows through the electric components inside the graphic card, it causes resonance and then high-frequency noise happens. This is the component characteristic, and it won’t affect the hardware.



How to prevent high-frequency noise (Coil Whine)?

The coil whine is easier to be heard in a quiet environment, or for the people who are more sensitive of higher frequency sound. ASUS will reduce the noise as much as possible, but this noise can’t be completely eliminated due to this sound is a physical phenomenon produced by normal using a device.


Asus support source, but it applies to any AIB graphics card !

And YES watching your video this is 100% coil whine...now keep asking us coil whine from what ...
 
#23 ·
Coil whine is quite specifically the noise a vibrating coil inductor/choke can make, not any similar noise.

The PWM circuits on some fans can make actual coil whine, but most of the 'coil' whine coming from fans themselves is probably actually bearing noise, especially in the case of ball bearing fans.

Most coil whine will come from higher-power switching power supplies...like those in the PSU proper, or motherboard or GPU VRMs.
 
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#24 ·
@UnderClockedOverVolted , you stated in your original post that you can hear it when you move the mouse and no 3D application running (just on the desktop) ? If so, it's not GPU coil whine. The Apex can produce some coil whine too. If this occurs at times when the GPU is not loaded, then I'd guess it's something else like the mobo.

Although 4090s are notorious for CW, so unless this does occur with the GPU not loaded, I'd also put my money on the GPU.