Hahahaha. Just saw this and it made my day! Thanks for being so kind. Still using this PC minus the Titan and plus a 1080ti. Never going back to large PCs again!
The loudest fan is actually the Titan X, which is itself pretty quiet. It's loud when I set them all to 2kRPM, yeah. But right now the overall temps are low (no OCs) so the fans are low RPM. I can't imagine ever needing 2k RPM though. I just liked them for the color.
Asetek sells a mounting bracket for $5!
71C's the highest i've seen the GPU and 73C the CPU. Only at 4Ghz now but will test the limits shortly
At idle the fans are off and CPU 45c, GPU 35. dead silent