Pc weird chainsaw noise.

[Maximefort]

I just finished my build and after a windows install, the pc started to make chainsaw noises. I tried to do some cable management and to put the cpu fan back on, but still no luck. The noise starts about half an hour after getting to desktop.

 

What could be wrong?

 

[ItsYaBoiKasper_]

Can you disconnect all the fans and see if it still makes the chainsaw noise? If it doesnt try to connect the fans one by one.

[MrMase]

Most likely a faulty fan, I suggest unplugging them 1 at a time unless you can tell by hearing which one is at fault then replace it.

[Maximefort]

The cpu fan is new.

It's the stock cooler

 

And that's the only fan appart from the psu

[Poinkachu]

7 minutes ago, Maximefort said:

The cpu fan is new.

It's the stock cooler

 

And that's the only fan appart from the psu

To me that sounds like a fan spinning at high RPM, in an enclosed case with opening for exhaust/intake.

So, why no additional fan for intake and exhaust.

[Pixelfie]

6 minutes ago, Maximefort said:

The cpu fan is new.

It's the stock cooler

 

And that's the only fan appart from the psu

So no case and GPU fans? Try stopping the fan with your finger (hold in the middle, not in the blades).

 

Also do you have a HDD?

[--SID--]

Full system specs includes brand and model of the PSU?

[Maximefort]

Well the gpu can't do that noise

 

Hdd like 4 years old

 

The psu is seasonic gc-500

 

And i do have a case

 

 

[Maximefort]

It's the fan

 

In q-fan control when i change the speed of the fan it starts that annoying sound

 

Should i get a new fan for cpu?

[Poinkachu]

14 minutes ago, Maximefort said:

It's the fan

 

In q-fan control when i change the speed of the fan it starts that annoying sound

 

Should i get a new fan for cpu?

Yea, we knew it.

Monitor your temp, and see how high.
You can replace it with aftermarket CPU cooler, but if you don't add atleast an intake fan. I doubt the situation will change much
it will be quieter when you idle due to bigger heastsink, but when you start hammering the CPU or GPU with heavier task, the CPU & GPU fans will start ramping up immediately

Without an intake & exhaust fan, at most your CPU cooler will keep recirculating the hot air the GPU, CPU, HDD, SSD, NVME, Motherboard expeled