To measure the acoustics performance of the BRIX UHD I used a digital sound meter. I first took an ambient reading to act as a baseline figure, before measuring the system’s noise levels at idle and under load.
There is always a constant whirr coming from the BRIX UHD. The 80mm fan simply has to be spinning at reasonably high rpms at all times, otherwise the passively cooled components would creep towards overheating.
Under load, the fan does kick up and the noise is pretty intrusive. However, it is no worse than a gaming laptop – which, considering the tiny form factor, is actually impressive.