CPU Fans

CPU fans are the most essential part of a computer although many fail to recognize their importance. CPU fans keep the system cool and ensure over heating is avoided to give optimum work performance. The temperature inside the CPU should never go beyond 96 degrees Fahrenheit. It is very essential to keep the CPU cool as the processor and hard disk inside the CPU are sensitive to heat. The components of a computer generate a huge amount of heat during operation and this heat must be reduced to a safe operating level to give good performance. Over heating might cause permanent damage to any of the various components inside the CPU and this is where the CPU fans are extremely helpful.

Passive or natural cooling which was widely used during the early days of computers is no longer advised. With high speed processors and components which consume a lot of power the modern day CPU’s require active cooling. CPU fans are designed keeping in mind these requirements. The technology behind the design of CPU fans ensures heat is lost to the surroundings to maintain equilibrium. The amount of air blowing from CPU fans is measured in CFM (Cubic Feet per Minute) and fans having high CFM are recommended for today’s modern computers. CPU fans come in various sizes to accommodate your needs and also come with copper heat sinks that dissipate heat quickly using thermal contact. Poor cooling can drastically eat into the life of your CPU. Excessive heating can result in your computer shutting down frequently and thermal sensors can be used to indicate any spikes in the temperature. CPU manufacturers realize the importance of CPU fans and tend to give a better warranty period to CPU’s that have CPU fans and heat sinks in them.

For the desktop computers normally two CPU fans are recommended. They can protect your computer against overheating and give your CPU a long run. Renowned manufacturers install one fan at the bottom front of the case to pump fresh air into the system and one fan at the top rear to exhaust hot air. Proper setup of CPU fans ensures a positive air flow is maintained in the CPU case. Positive air flow can be created when the CPU fans pump more cool air into the CPU than the hot air from the CPU.

CPU fans come in sized ranging from 40 to 140mm. Even larger size fans that measure up to 240mm are doing their rounds in the market but these are not required for desktops at home. The other important aspect or an undesirable output of a CPU fan is the noise. CPU fans inherently produce a lot of noise. This noise level goes up as the CFM rating goes up. But there are ways to cool down your system and still beat the noise. You can opt for ball bearing fans or fluid bearing fans for a near silent operation. Although these come at a price when compared to the conventional sleeve bearing fans they are long lasting and quiet. Some CPU fans come with an option to change the Revolutions per Minute (RPM) thereby giving the control to us. We can operate this fan in a lower speed when required thereby producing less noise. These CPU fans cost between $15 abd $20 while the silent or noise free fans cost upward of $40.

CPU fans are indispensable for the modern day high speed computers. They ensure a trouble free service in the long run. It is good to note consumer awareness on the importance of CPU fans has increased. The significance of the unassuming CPU fan is also trumpeted by the CPU manufacturers – CPU fans protect their product just as much as your computer.

This CPU Fans Review is Written/Updated on Jun 28th, 2010 and filed under Computer Hardware. Both comments and pings are currently closed.

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