From what there can be a strange sound near the processor?

Question

Iron

Hi all. I recently assembled my own computer. ASRock B450M
STEEL LEGEND (BULK) Motherboard
AMD Ryzen 7 PRO 2700 OEM
CPU Aerocool VX PLUS 800W [VX-800 PLUS] PSU (located on the bottom)
A-Data XPG Gammix D10 RAM [AX4U2666716G16-DR10] 32GB
System water cooling DEEPCOOL GAMMAXX L120T RED.
changed the cooling system several times;
Now I noticed that while playing Assassin's Creed Valhalla, a bzzzzzzzzzzzzzz sound is heard in the processor area, what could it be from? And should I be worried or do anything? I didn't check it in other games, but when I run the Unreal engine 4 editor and blender or chroma, there is no sound.
ps I'm not sure that the sound is coming from the processor, but it's definitely near it.

Answer 1

If there is dropsy, then the pump is working, it sounds like that.

Answer 2

It would be nice to touch different parts with your finger and determine the source of the sound by vibration.
As usual, in such cases, I advise you to check the capacitors on the motherboard and in the power supply - are they swollen. Sometimes ringing occurs due to the fact that capacitors do not smooth out voltage fluctuations.