Sound coming from PSU.

Samhfx · 11 Apr 2021 at 17:29

I put together this entire new system last week. However I've started to encounter a strange noise, I think I pinpointed the noise to come from the PSU.
Is this something I should be worried about? It's really noticable when no sound is playing through my headphones.

I found some videos online which has the same noise as mine. These are not my videos but it's a good example

https://youtu.be/i9xQgT1fSfA
https://www.youtube.com/watch?v=jovkhOrvo6Q&t=4s

Samhfx · 22 Apr 2021 at 10:36

Meddling-Monk said:
Are you talking about the sound that's almost like a cricket or mosquito at a fair distance away and you can just about hear it sound? If so, I believe that's a form of coil whine, my old HX650W had that (sporadically).

What PSU are you using and what is it powering?

Yes exactly that. It's awful underload.

I have the Corsair HX 850w. Should I send it back and hope for a refund then choose a different brand/model? Need help!

Samhfx · 22 Apr 2021 at 11:31

mickyflinn said:
I would send it back but if you get a straight replacement then the same problem may occur.

Seasonic are one of the better manufacturers.

What about the Corsair 750 Watt RM750x? Lower wattage but seems better.
Which seasonic psu exactly?

Samhfx · 22 Apr 2021 at 11:42

mickyflinn said:
Rmx is good so Could try another corsair, seasonic focus or prime are quality units check out dome reviews .

https://streamable.com/l7pi0j

this is the problem i have

Samhfx · 22 Apr 2021 at 12:04

mickyflinn said:
Im on my phone so audio is not great but it sounds like a fan problem.

how can i test to know if its coil whine or fan?

Samhfx · 22 Apr 2021 at 12:18

mickyflinn said:
To test the fan you have to stop it but that can be problematic as you havd to disconnect it inside the psu or physically stop it.

Dont bother send it back if you think its the Psu.

but the noise is obnoxious, i hear it through m headphones underload.

Samhfx · 22 Apr 2021 at 12:38

i took the psu out the case, the fan doesn't even spin underload it just makes the noise when running a benchmark

Samhfx · 22 Apr 2021 at 13:05

mickyflinn said:
Send it back then.

I had an adapter to make the psu fan spin. sounds fine. just underload the noise starts. will send it back and probably grab a rmx 750w psu instead. thank you for the help.