From the videos i've seen it's very non-trivial to replace the fan on an FE card unfortunately. I think I remember you (or someone else) mentioning that the used a block and it solved the issue but unfortunately I'm just not that way inclined; I absolutely respect it though! I'm trying to find an easy way to share the audio file I have demonstrating the issue but at a loss (I'm not into the whole youtube thing)
I think ultimately like I said, I'll upsell to a 4000 series card when they launch.
Honestly, it's the sort of thing you have to be very pedantic to notice because it's quiet. In the end I filtered the signal to reproduce the noise. I went direct with Nvidia this time though I have RMA'd a 3070 FE with the Bolton place for the same exact issue. So ultimately, I have a sample size of N=4 FE cards and they all produce this sound so I've come to the conclusion it's a design flaw; perhaps it's the sound of the air passing through the metal fins of the card /shrug
It's been present on 2x 3070 FE and 2x 3080 FE cards I've had access to so perhaps it's not present on the 3060 Ti. I definitely appreciate getting a brand new card.
Either way, any suggestions regarding what to do with my old 3080 FE box and accessories?