Desktop PSU buzzing sounds

I agree. Some FW support responses tend to be AI LLM chatgpt like.
I don’t know if FW are aware of this, or whether whoever they subcontract their 1st line support to are cheating without FW knowledge.

230V could be a contributing factor. I haven’t thought about that. They probably focused on 110V and US power standards. I am sure the OEM has those things tested properly also for 230V so they are safe but they might not care about buzzing or coil whine noises.

Another explanation is that coil whine and buzzing is dependent on component quality but also on luck, add to that, that hearing capabilities at odd frequencies varies more than many believe and if the noise is damped by distance to the PSU or other noise sources in the room it gets even patchier.

Yes, I am also from a 230V 50Hz country. What I noticed is, while a GPU intensive task is running I can hear a coil whine from the PC and when I turn up the speakers without playing any music from the PC, I can clearly hear a corresponding pulsating sound over the background noise, which stops as soon as the GPU task is finished. Same when I open and close the bazzite website. :unamused_face:

I can’t really pinpoint the source, but it does not seem to come from the bottom of the case, where the PSU is located.

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What fixed the annoying sound for me ( hey i am also from europe), is to go into BIOS set the cpu fan always on and set the cpu minimum temp at 30 celcius. Now the psu sound only activates once in a blue moon.

I have the same issue and the only thing that helped was setting the ryzenadj power-saving mode. I opened a support ticket and hope they figure something out so that I don’t need to keep the power saving mode on on a $2500 machine.

@nlampri I think based on this you are experiencing the PSU fan sound which seems like a much more common issue.

@JP21 thanks! Changing the power mode with ryzenadj and/or the power management profile in KDE does seem to affect things! I wouldn’t say it totally removes it, but it does definitely affect it!

I only have the issue when my Thunderbolt dock (Caldigit TS5+) is connected. But then constantly, although power management profiles indeed change how loud the sound is.

Also, I’m running Fedora Cosmic and I noticed, that it gets a lot worse when hovering over native Cosmic app windows. :person_shrugging:

Another thing that seems to improve the situation is changing scaling to 100% (I used 150% before) on my laptop display while having the dock with an external display connected.

I can now confirm that it indeed is 100% the PSU: after switching off the laptop, keeping it at the charger will result in the buzzing sound as well until the battery is fully charged.

As my laptop was fully charged and continuously connected to the power supply while it was on, I guess it is kind of micro-discharged and also recharged while using it. That shouldn’t be the case, when connected to a power supply, right?

The Caldigit TS5+ supplies the laptop with 240W, so it should be enough even with the dGPU connected and active.

I think the buzzing you’re experiencing is pretty normal. If you see the recordings in the Noisy PSU fan thread, a lot of them have audible coil whine. If I had to guess, anything that increases power draw, like charging devices or maybe rendering some apps/games, can have some degree of coil whine.

Hm, I might be biased as I have a MacBook for work and I hear no such thing on it, but the whine is very very distracting - especially given the fact that I paid a lot more for the Framework 16 than for my pretty beefy MacBook (and yes, I absolutely appreciate the upgradability and happily pay more for it, as long as the parts are also of a good quality).

Anyway, I’ll try this weekend disabling the iGPU in BIOS to see whether the whine still happens - there are reports in the linked thread indicating usage of the iGPU can trigger this. Thanks for linking, @Guest492!

Makes sense, in another thread ( How common is coil whine? - #7 by krylov_subspace ) someone did say that Apple does focus particularly on addressing coil whine. It’s possible that your PSU happens to have louder coil whine than most. Based on what I could find, the whine tends to be around the volume or the PSU fan when it ramps up, or quieter. If yours is much louder or distracting, you can try reaching out to support, they might be able to get you a replacement or something.

I found the coil whine only happens when connecting my dock, it doesn’t happen when the Framework charger is connected and it doesn’t happen on battery.

Same here, firefox bazzite.gg (only top of the web page) is indeed a good reproducer.

230V 50Hz

AI Max+ 395 - 128GB
Running fedora 43 / Cosmic
Display 1 DisplayPort 4K 240Hz VRR
Display 2 DisplayPort 4K 60Hz

Moving the bazzite.gg browser window from from display 1 to 2 makes it much less apparent

Certainly coil whine. I can live with it as I have noise canceling headphones on most of the time. Could probably also move my framework desktop under the desk but it’s too sexy for that :slight_smile:

Had some time to test more:

  1. Disabling the iGPU in BIOS doesn’t help at all.
  2. Plugging in the Framework charger in addition to the dock makes the buzzing much (!) quieter - makes me think whether the dock doesn’t have enough power to charge the framework, although it should (but I noticed that the battery discharges while gaming demanding games on Windows).
  3. No buzzing at all on Windows - even with just the dock connected.