Unknown Buzzing on start up

[MW870]

So yesterday when I fired my pc up it began making this weird noise, I’ve determined it’s none of the fans (which I thought it sounded like) as it still makes the noise when I stopped them individually. It only does it for 5-10 mins upon initial start up then not again until the next time it’s been powered off for a significant period of time like overnight or at work.

https://drive.google.com/file/d/1p0dCae3syuVPoaii0K6OZK-AJt0hQVdP/view?usp=sharing

[Rustys]

Did you check the fan on the PSU?

[MW870]

Did you check the fan on the PSU?

Hi I did not as of yesterday, and today I was un-able to replicate the noise oddly enough? Looking at the PSU fan though nothing seems loose or out of place that could potentially be the culprit.

[Rustys]

Monitor it for a bit see if it returns.

[MW870]

Monitor it for a bit see if it returns.

So I hate to sound stupid but is there any way it could be weather related? Not sure if it’s a coincidence or not but it seems to be only replicating it on days that’s it’s been well below zero outside? (-15to -30 in the case of this happening). This is the only constant factor I can see.

[Rustys]

What is the temperature of the room that the system is in?

When it does happen what is the computer temperature compared to the temperature when it quits?

I’ve determined it’s none of the fans

Just to confirm that you checked just the ones that you show in the video?

Did you ever check the ones on the display card and PSU?

[phillpower2]

Thread closed due to lack of feedback from the OP.