Question Liquid Cooling fans are very loud even when PC is doing only basic tasks ?

[Nick C.]

Hello,
Recently I had a problem with my old AIO Cooler Master Ml240p Mirage, so after some tinkering with a friend we figured it out it was the fans that were the problem on the old liquid cooler. Basically they didn't spin above 800RPM at all, not even after changing their speed in BIOS and they practically didn't work on any command, my i9-9900K was reaching temps of 95-98C so I had to change something.

I remembered I have an old NZXT AIO whose pump was broken, so we decided to swap the fans from that NZXT AIO to this. All in all it works, the temps are great(90 was max on 100% load at cinebench) , we were right about the fans etc.

However I have another issue now. These fans are very loud? Even in Normal mode, they just get very loud even when I'm doing basic tasks like opening google, opening apps, entering games, programs etc. I am now wondering, is it now normal or are fans on the cooler not supposed to be this loud? When I say loud I refer to very, very loud. I changed it from Normal to Silent in BIOS but it was still, very loud on basic tasks.

I hope someone can help me a bit.

Thanks in advance!

 

[Fix_that_Glitch]

Have you adjusted the fan curve in bios or changed them to pwm mode?

 

[Lutfij]

I'm curious to learn what the make and model of your case and the number and orientation of the fans are. In fact, which NZXTY AIO are we looking at? Ambient room air temps? Speaking of BIOS, what BIOS version are you currently on for your motherboard? How are the fans hooked up in your platform?

 

[Nick C.]

Have you adjusted the fan curve in bios or changed them to pwm mode?

I tried adjusting the curve, but yet when I open something they spin really fast for a couple of seconds and it goes back down, but if nothing, my curve that I messed with ended up just raising the temps and nothing. Nothing made the fans more quiet. I haven't changed them to pwm mode, what is pwm mode?

 

[Nick C.]

I'm curious to learn what the make and model of your case and the number and orientation of the fans are. In fact, which NZXTY AIO are we looking at? Ambient room air temps? Speaking of BIOS, what BIOS version are you currently on for your motherboard? How are the fans hooked up in your platform?

It's NZXT H710 and the fans are facing the exhaust direction. I have 3 fans on the front that are intake and 1 at the back that exhaust and 2 on the top from liquid cooling that are exhaust. It's 3/3. NZXT AIO that I took fans from is Kraken x63. Newest BIOS version for Aorus z390 Elite, updated it when the newest update came out, few months back.
Fans (Liquid cooler fans) are hooked up on CPU Fan port on the motherboard.