We measured the noise emissions of our entire test system at the wall while loading the CPU using Prime95 and GPU using FurMark. We also measured the noise emissions of the system with it resting at the desktop. We placed our digital sound level meter 1m from the front of the case when recording results.
The only area in which the Alpha Pulse doesn't excel is in noise emissions. When the system is idle it's far from silent and under load it generates quite an intrusive whiny noise.