Corsair H150i Elite Capellix Buzzing sound

[AirportExpensive9201]

Hi,

Around 1 month ago I brought H150i Elite Cappelix. I run it on stock thermal paste and it was quiet, but after changing it for Thermal grizzly one, I got this sound, This been 2 weeks ago, and still no change.Temps are excellent, it's just a noise (less then 50C in games/25-30 Idle/65 in Cinebench R23 multi-core after 10 minutes) * ALL on BALANCED settings on iCUE*

I've tried pin point the problem and it's definitely pump. Thinks I've done:

-Tilted PC in all directions

-Run AIO on extream on it's side for more then 1 hour

-Turning ON AIO without attached to socket ( same sound)

-Using washers on Fans screws.

Video: https://imgur.com/a/qqcuXKN

*On idle pump is QUITE quiet so,it's hard to hear it on video, When you can hear the pump it's when I open up a random game ( It happens in every game/CPU intensive tasks) The only fix I found was limiting fps in games to 60-90 fps and noise is reduced by like 50% and sound just like on desktop*

Also the noise you hear I can hear it, with side panels ON and 2 meters from me at around 70% of what you hear. Also the "liquid moving" sound you hear only happens when you start a game for around 20-45 sec then it's disappear.

My Amazon return window is ending in 2 days. Is that noise a sign of something bigger ?

I really want to avoid Returning it because I would not be able to use PC until new one arrive.

Edited October 3, 2022 by AirportExpensive9201

[Corsair Raven]

Hey there, go ahead and contact our support team by opening a ticket at https://help.corsair.com/hc/en-us/requests/new so our support team can look into this further for you.

[newJason]

I bought the same model H150i Elite Cappelix about 2 months ago and yesterday had that same noise that was coming from the pump.

I fixed it by setting the pump to "quiet" mode and it stopped instantly and has not returned.   It's a small air bubble that gets hung up on the pump fins. Make sure your pump is not the highest part of your cooler system.