Thermaltake Smart BM3 850W Semi-Modular Power Supply Review

Fan Speed

Unfortunately, the fan mesh on this PSU had quite small holes, so my laser was struggling to get a consistent reading on the fan, so these are simply predicted fan speeds based on what I observed and the fan specifications, but overall, it ran very quiet, as it doesn’t take much cooling given the lower wattage design, plentiful ventilation, and it can use a zero RPM mode at lower loads and temperatures too.