Benchmarks: Noise
Good temperatures are coupled with reasonable noise levels. The Aurora R4 isn't by any means silent, but the system's audible hum isn't as obtrusive as other gaming rigs.
What's interesting is that the system is noisiest when the CPU comes under extreme load. Tasking all available cores using Prime95 forces the radiator fan to spin up and increase noise to a slightly more irritating level.
No real concerns when gaming; the Aurora R4 will continue to be heard, but it's easily the quietest of the bunch.