Question Corsair H150 RGB AIO - Is this noise normal ?

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Consulcast

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Jan 17, 2017
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I recently built myself a PC (got it built). There are no problems with the temperature. At idle, the CPU sits at 38 degrees. After gaming for a while, I realized that a noise was coming from the AIO pump. It is a Corsair iCUE H150 RGB 360 mm AIO water cooler. It is installed with the radiator on top.

I have tried tilting the PC, it does go away for a short while, but does come back again. I don't hear it while I have headphones on, but I subconsciously look for it I guess.

Is this sound normal or should I be worried? (I recorded it through putting my phone's microphone right next to the pump)

https://voca.ro/1mRUb1qCPEzB

Here's also a video of the sound:

https://streamable.com/x5cgb6

Here are my specs:
MSI B650 Gaming Plus Wifi
AMD Ryzen 7 9700x
Corsair iCUE H150 RGB 360 mm AIO
Corsair Vengeance 32 GB (16x2) DDR5 RAM
NZXT H7 Flow (2024)
Corsair 1000W 80+ Gold Full Modular PSU
 
An update: I think I solved it. So the pump fan had a 3 pin connector and was on PWM. I put it on DC and then turned Smart Fan on for it (default smart fan curves applied). It is much better now. Most people have suggested to have the pump on %100 but noise is annoying as hell (not loud, but its like a fly in my ear type of annoying).

Would Smart Fan damage the pump or something? I played some games and the temps were as is.
That's one common problem with AIO coolers, 90% of them have same pump made by same manufacturer Asedek and are same for all radiator sizes. Most of time "Just enough" so in some cases they must run faster to be effective. That of course brings some noise with it but proper cooling takes precedence. Some AIO coolers don't even have speed adjustable pumps to ensure proper cooling in all circumstances.