[SOLVED] CPU fan way too loud

[antiglobal]

I have installed a descrete graphics card, so now in gaming CPU is under higher load (no more integrated GPU beeing the bottleneck). Now, as soon as CPU reaches 50 oC or so, the fan is as loud as a jet engine.

In BIOS, I have set the fan to the lowest setting (0.75% PWM for every oC). But it is still very loud. And it is not even 100% duty cycle of PWM. It is about 70%.

Is there a way to set the CPU to target higher temperatures? I have not seen this option in BIOS. Or to set lower RPM for a FAN in Windows?

My specs are:

AMD A10-7850K (Turbo Boost set to 4.2GHz)
Biostar RX 560 4 GB GDDR5 (Mining version - 896 Stream processors)
16 GB (4x4 GB) DDR3 @1866MHz
Gigabyte F2A88XM-D3H rev 3.0
1TB Samsung 860 QVO
LC-Power LC-420H-12 (PSU)
Raijintek Aidos (CPU cooler)
Cooler Master Silencio 352 (case)
Dell 1080p 23" monitor
Windows 10 Professional 64-bit 1903
Radeon 19.9.2 drivers

 

[Countess_C]

Whatever you decide to do, say Adios to the fan on the Aidos cooler and get a better one. I recommend the Noctua NF-A9 PWM. They use it on their CPU cooler NH-U9S.

They complain about the noise of the Raijintek Aidos cooler in this review: https://www.techpowerup.com/review/raijintek-aidos/7.html

 

[antiglobal]

Thanks. That is some fine fan. But a bit pricey, 22$ here. I could get LC Power LC-CC-120 for 26$, Antec a40 pro or Cooler Master Hyper H412R for 27$. Not sure of theiir performance or noise, but comparing the price, does not seem worth spending that much on just a fan.
Any cheaper alternatives?

 

[Countess_C]

Look for a 92 mm fan that moves a lot of air and has a high static pressure and low noise (dB). The Noctua NF-A9 PWM I mentioned is one of the best. They also have the cheaper NF-B9 Redux. And Be Quiet! have some good fans as well.

 

[antiglobal]

It turns out, there is not much choice. So I ordered a NF-A9. Probably will get it tomorrow.

But what is the deal with this? I am playing GTA V, and the CPU fan is at about 70-80% and very loud. But as soon as I alt+tab out of the game, CPU fan slows down to idle speeds and I can almost no longer hear it. The, after I alt+tab back into the game, after a few seconds, the speed rumps up to 70-80% again. All this while CPU is under 50 oC.

 

[Countess_C]

It turns out, there is not much choice. So I ordered a NF-A9. Probably will get it tomorrow.

Good choice, though! Can't get better fans than Noctua.

But what is the deal with this? I am playing GTA V, and the CPU fan is at about 70-80% and very loud. But as soon as I alt+tab out of the game, CPU fan slows down to idle speeds and I can almost no longer hear it. The, after I alt+tab back into the game, after a few seconds, the speed rumps up to 70-80% again. All this while CPU is under 50 oC.

I looked in the manual for your motherboard, and it says in the Hardware Monitor section:

"APU/System fan speed control
*Whether the fan speed control function is supported will depend on the cooler you install"

So perhaps you can set a better fan profile in the Hardware Monitor? If that doesn't work, you could use a cheap manual fan control instead of having the fan plugged in to the motherboard, and keep an eye on the temperature.

Yesterday when I started a program the CPU fan sped up for a few seconds and I thought that was silly because the heatsink didn't even have time to get warm. 😒

 

[Crosslhs82x2]

Agreed on Noctua fans they are pricey but the best in my book.
I use the ippc models on my corsair water coolers.
1x h100i on a fx 6300
1x h110i on a fx 8350
1x h110i on a r5 2600x

 

[antiglobal]

Well I have installed a Notcua NF-A9 with the low noise adapter, and WOW! Not only there is no more jet engine noise from the CPU fan, I cannot even hear it, while the CPU temperatures are 50-55 oC in GTA V!

Now the noisiest fan is the one on my second-hand graphics card. And, I will open another topic, to see if I can solve that.

So, this problem is solved. Thank you.

 

[Countess_C]

That's great! Check the CPU temperature when you do something intensive and if it gets too hot, just remove the low noise adapter. With intensive I mean gaming and things like that, not lifting weights and doing push-ups, but it's always good to exercise!