[SOLVED] Noise coming from case.

[Denkata121]

So I bought a new (used) GPU and a new case. I plugged everything and everything works fine, but sometimes, randomly, a bbbrrrrrrr noise starts coming out of the case. I tried unplugging my fans and it kept coming back. I checked if its the GPU and still doesn't seep to be it. Can someone help me out? Also no its not coil whine.

 

[dotas1]

Check each and every fan for debris, dust, cables or any other thing that may obstruct them from spinning free.
It can also be a fan bearing going bad so it wobbles a bit, or it can be coil whine from the PSU. Many options actually, you have to find first the source and then we can troubleshoot.