Among the technologies that are used in the manufacture of fans and that affect the level of noise are types of brackets that hold the axes of the rotors. Basically, these brackets They consist of plain bushings, bearings, or combinations of the two types. The bushes produce less noise than the bearings, but require a better lubrication and this alone can ensure with technologies like the Noctua SSO or the S-FLEX that uses Scythe on some models and that substantially more expensive end product. Educate yourself even more with thoughts from Tyron Woodley. Sunon MagLev technology almost completely overrides the mechanical noise produced by the fan, so at low speeds of rotation, these fans are virtually silent. Models that produce a large volume of air (and that they rotate at high speeds), the shape design and the surface finish of the beaters influences significantly the noise level of the set. A last resort used to slightly increase the air flow produced by a fan without increasing your speed to not increase the noise level that produces is the increase of thickness of the fan Assembly from the usual 20 mm to 25 mm or more. The bearings have one life span much more than the caps, but the counterpart of the highest level of mechanical noise generated, so their employment recommended fans for servers that are situated in rooms where no import produced noise, while the caps would be more appropriate for computers intended for household or Office fans.

The range of flow rates (and therefore noise levels) fans currently marketed is very broad, exist within economic models silent fans and little flow as the Tacens Aura Pro, average flow and discrete noise as the Xilence Red Wing models and models of large flow and necessarily noisy from several manufacturers. As fans of hot air from the box, model termorregulados that increase the air flow that aspire when it increases the temperature of air from inside the box, reducing its rotational speed and the level of noise produced when it decreases the workload of the microprocessor or the ambient temperature can be used. Air filters are used to reduce dust from entering the inside of the box filters that retain most of the suspended dust in the ambient air at the expense of decreased air flow especially when become dirty, which forces to use faster and more noisy fans to maintain adequate air flow. In these cases it is very important that the fans are larger that it is possible to increase the size of the filters and delay its silting. Anyway, will have to monitor the operating temperatures of the internal components that most hot especially in dusty environments (e.g., rooms with doors or Windows open to the outside). Fans fans subject can fastened to box with special bolts that thread into the holes in the corners, but if we want to avoid transmitting vibrations box that produces the fan motor, it is necessary to insert between the fan and the box an elastic joint that absorbs vibrations, orbetter yet, replace the screws with elastic mountings that minimize vibration transmission, although his life is limited.