Question Weird noise from case(probabbly aio)

[svat]

Hello guys, today i started up my pc and after 5 seconds of startup i started hearing very loud noise from my case. It was noise like drilling to the wall. I get closer to the case and i think it is AiO, is it normal or should i be aware of something. I checked it out and i should have my AiO mounted properly, here is link to photo(

https://imgur.com/a/mQuz9V6

View: https://imgur.com/a/mQuz9V6#zG5z8Gy
)i already been asking this on this forum. It happened once 4 months ago and i have to restart pc and its again normal. My temps are fine btw.

Here is video of the loud noise https://www.reddit.com/user/svat31/comments/qap00m/aio_noise/

 

[Deleted member 362816]

To me it sounds like that AIO is about to fail. That's my 2 sense. Easy to figure out if its the aio, Unplug the pump header and turn the pc on for a moment if the sound is gone its the aio.

 

[svat]

Where is aio pump header cable? is it marked on mobo or something?