Question Weird Fan Noise, what is it?

[averywon]

Hi, i got a prebuilt like 2 months ago, and it made a weird fan noise which happened to be a wire vibrating against the case, i was able to fix this issue then a few weeks later i was granted with a new noise, does anyone know what this sound could be?

 

[averywon]

View: https://youtube.com/shorts/zmP4YXBkXRc?feature=share
this might help capture the noise more, is this serious or could i just ignore it? im a very paranoid person and im scared this will lead to a bigger issue. usually it only starts after the pc is on for about an hour ish. i know what fan is making this noise, which is the top one of 3 fans in the front of my case

 

[mrmaruniversal]

View: https://youtube.com/shorts/zmP4YXBkXRc?feature=share
this might help capture the noise more, is this serious or could i just ignore it? im a very paranoid person and im scared this will lead to a bigger issue. usually it only starts after the pc is on for about an hour ish. i know what fan is making this noise, which is the top one of 3 fans in the front of my case

Honestly, I wouldn't worry to much but mayber consider replacing the fan if noise gets worse or you notice it slowing down. I've had fans that you can hear grind from the next room over. But it never hurts to replace it now for paranoia, when you can.