Weird sound being emitted!

[Mackan_G31]

I've got a weird sound being emitted from my PC and I can't really locate from where but it seems like it's either from the CPU cooler (H100x) or the GPU (Gigabyte RTX 3070 Gaming 8GB). The sound always appears when the PC is under high load, for example during gameplay and rendering. And as Im not familiar with this sound i have no idea where and why it's there, so if someone recognizes the sound from the video I've attached I'd be glad to know! (The sound in the video am referring to is the buzzing and rattling sound you can hear in the beginning)

 

 

Happy for any advice and info that could help            

 

[AlwaysFSX]

Sounds like coil whine to me.

[shone32]

If the temps aren't bad and the sound doesn't bother you too much, you could just leave it there. It is probably a bearing in one of those fans, it needs to be oiled. If you distinguish which fan is making that and if you feel like you can do it, there is ton of tutorials online how to disassemble fan and oil it. Have fun fixing!

[kelvinhall05]

Coil whine, it's completely normal and not worth trying to fix.

[MrJrCookie]

That's coil whine for ya, nothing you can really fix.