The PSU has 2 lighted 80 cm fan, a bottom, a rear. In desktop mode Do not rotate only once. With the appropriate PC-stress one of the fans begins to spin. If one notices but not, but only if you look, as he so slowly hindreht that he just is not listening. In 3D games mode heavy utilization of the second fan starts to rotate. The fans are really only faintly audible and only a breath of wind, never with a disturbing humming, so no engine noise. Reduce cable clutter, since only the required cables are plugged in. PC case is tidy inside. I have a silent PC with also silent CPU fan (2 Component Xilence fan), but the only thing you hear is the also very quiet hard drive. This Ultron is very high quality and highly recommended. Have 110 - paid and do not regret a penny.
