When I out pressure on the chassis of my FW 16 like my arms resting while typing the fans sound like they start to rub something. I upgraded my laptop by adding a 7700s, before it had integrated graphics and the fans in the expansion bay module didnt have this problem before.
I have a recording of the sound but the forums only allow image, gif, and 3d modeling file types, no sound or video. If there is a way for me to share the file let me know and ill share it.