Need For Fan Control
As modern PCs grow more powerful so do their requirements for electrical power. Computers convert most of this electrical power into heat generated by all major components.
Some early generation PCs did not need active ventilation. Power supplies eventually needed forced cooling, and soon took up the duty of cooling the rest of the PC with the ATX standard. The byproduct of increased heat generation is that the fan(s) need to move increasing amounts air and thus need to be more powerful. Since they must move more air through the same area of space, fans will naturally become more noisy.
In fact, if one installs extra fans in a PC case, the noise levels can reach 70 dB. Since fan noise increases with the fifth power of the fan rotation speed, reducing rotations per minute (RPM) by a small amount potentially means a reduction in fan noise. This must be done cautiously, as excessive reduction in speed may cause components to overheat and be damaged. If done properly fan noise can be drastically reduced.
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Famous quotes containing the words fan and/or control:
“Anyone with any real blood in his or her ... veins cannot help being a fan ....Being a true American and being a fan are synonymous.”
—Lulu Glaser (1874–1958)
“The glance is natural magic. The mysterious communication established across a house between two entire strangers, moves all the springs of wonder. The communication by the glance is in the greatest part not subject to the control of the will. It is the bodily symbol of identity with nature. We look into the eyes to know if this other form is another self, and the eyes will not lie, but make a faithful confession what inhabitant is there.”
—Ralph Waldo Emerson (1803–1882)