Buzzing from Corsair RM850 (2021) PSU when PC is off

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Joined
29 Sep 2014
Posts
279
Hi Guys,

As the tile states I have noticed a buzzing from the above PSU when PC is off, I did of course google the issue and found out that some had the same issue (mostly with Corsair, which makes me wonder...) and resolved it by disabling the (pretty useless in most cases) ErP Mode (s4+s5) which seem to control the wake on lan / keyboard.

Anyone had any similar experience? The PSU otherwise is great and when using it it makes zero noise, even at heavy load.

It found posts quite old with similar issues solved with that setting in the BIOS being turned off.

I had a beQuiet for years and it has been dead silent always, got this corsair as I did a new build (with Corsair Hydro custom loop, my first) so thrown in the Corsair PSU as I needed to change it anyway, and I always heard decent feedback from their PSU's userbase.
 
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