Computers and other electronics don`t deal well with water and heavy dust, but those aren`t hazards in most homes and offices. One hazard that`s a much bigger concern is heat because powerful CPUs and video cards generate a lot of it in the course of their normal operation. A laptop can sit on a cooling mat, but if you use a tower or desktop workstation, your best bet is to add more fans. ... If you need to install a 3-wire computer fan, forget the wiring diagram. Most computer motherboards come with a standard connector for the fan, and it only fits one way. If the connector fits the pins, it`ll work, and you don`t have to worry about the pin arrangement.
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