Question GPU Makes Weird Rumbling Noise

[annoyinggpu]

So basically my Zotac GTX 1080 AMP! Edition makes a weird noise and I think it is because the fans aren't running at a constant speed, the fans start to slow down, then they speed back up. This process repeats constantly and every time the fans speed up the GPU makes a rumbling/buzzing noise. Any way I can fix this?

Heres a video of it:

View: https://www.youtube.com/watch?v=EHnCrZlbTyU&feature=youtu.be

 

[knickle]

The noise could be a failing fan, or the blades might be rubbing on something like the fan's power wire.

The revving seems to be normal. I found this: View: https://www.reddit.com/r/nvidia/comments/4s66yb/zotac_1080_amp_extreme_fan_revving_can_anyone/