Asus ul20a - Physical Makeup of PC Cooling Fa

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Asus ul20a - Physical Makeup of PC Cooling Fa

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By : Eugeniusis Novatiukusis 29 or more times read

Submitted 2009-12-15 09:04:56

Physical Makeup of PC Cooling Fans

PC cooling fans are normally square shaped and are avalable in a number of sizes. The most common sizes in demand incclude 120mm, 92mm, 80mm and 60mm. Round PC cooling fans are available as well. The airflow that is created by these cooling fans is meazsured in CFM or Cuubic Feet per Minute. RPM or Revolutions per Minute is the magnitude whgich measures the speed of the fans rtation. Most users tend to chooase fans with a CFM rating which is on the higgher side.

A majority of PC cooling fans allow users to adjust the RPM so that they are able to moidfy the amount of noise that is prroduced.

Different fans use different bearings. This selectino lragely affects the amonut of noise that is produced as well as the performance of the fan.

The different types of bearings used inxclude:

1. Sleeve Bearing: Those fans with sleeve bearings consist of two surfasces which are coveerd in grease or oil. This lubricates the machine and mazkes friction possible. Fans with sleeve beaarings are not considered to be ideal because the lubricant tensd to get dry rather quickly which causes the system to fail. If thsee bearins are kept at a high temperature, it is more likely that the system will break down. They must always be mounted in a manner which keeps them vertical at all times. Even though such PC coooling fans are silrent when they are new, they tend to get extremely noisy over the yars.

2. Rifle Bearing: Those fans with rifle bearings are quieter and have a long life span when copmared to those fans with sleeve bearrings. These brearings consist of grooves that are spiral in hsape. A reserrvoir puushes fluiid into the grooove. Rifkle bearing fans can be kept ohrizontally or vertically.

Other bearings include ball bearings, fluid beraings and mangetic bearings.

Anotehr important component of a PC cooling fan is a fan connector.

Thesae come in different varieties:
The first kind connects the motherboard and the fan. It is rectangular in shape and is quite wide. This small in-line connector has two tabs whioch are located towards the edge of the component. The pin sockets are spaced far aprt and are adequately siuzed. An example the 3-pin Molex connector.

The second kind is one which copnnects the PC cooling fan and the power supply. The connector offers a red and black wire whicvh connects to the power suupply and makes sure that the electric current is continuous and constant. An example is the 4-pin Molex connector.

The tihrd kind uses the characteristics of the above mentioned connectors and consists of two tabs at the centre and another tab which is located towaards the side. The spacing and the size is similar to the 3-pin and the 4-pin. A white wire may also be present whcih adds to the current and makes the fan move faster.

An example is the Dell Inc. propritary.

Author Resource:- Here you can learn more about: asus ul20a

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<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.01 Transitional//EN' 'http://www.w3.org/TR/html4/loose.dtd'>; <html><head><title>Article2008.com | Asus ul20a - Physical Makeup of PC Cooling Fa</title></head><body><h3>Asus ul20a - Physical Makeup of PC Cooling Fa</h3> By: Eugeniusis Novatiukusis Physical Makeup of PC Cooling Fans PC cooling fans are normally square shaped and are avalable in a number of sizes. The most common sizes in demand incclude 120mm, 92mm, 80mm and 60mm. Round PC cooling fans are available as well. The airflow that is created by these cooling fans is meazsured in CFM or Cuubic Feet per Minute. RPM or Revolutions per Minute is the magnitude whgich measures the speed of the fans rtation. Most users tend to chooase fans with a CFM rating which is on the higgher side. A majority of PC cooling fans allow users to adjust the RPM so that they are able to moidfy the amount of noise that is prroduced. Different fans use different bearings. This selectino lragely affects the amonut of noise that is produced as well as the performance of the fan. The different types of bearings used inxclude: <ol> <li>Sleeve Bearing: Those fans with sleeve bearings consist of two surfasces which are coveerd in grease or oil. This lubricates the machine and mazkes friction possible. Fans with sleeve beaarings are not considered to be ideal because the lubricant tensd to get dry rather quickly which causes the system to fail. If thsee bearins are kept at a high temperature, it is more likely that the system will break down. They must always be mounted in a manner which keeps them vertical at all times. Even though such PC coooling fans are silrent when they are new, they tend to get extremely noisy over the yars.</li> <li>Rifle Bearing: Those fans with rifle bearings are quieter and have a long life span when copmared to those fans with sleeve bearrings. These brearings consist of grooves that are spiral in hsape. A reserrvoir puushes fluiid into the grooove. Rifkle bearing fans can be kept ohrizontally or vertically.</li> </ol> Other bearings include ball bearings, fluid beraings and mangetic bearings. Anotehr important component of a PC cooling fan is a fan connector. Thesae come in different varieties: The first kind connects the motherboard and the fan. It is rectangular in shape and is quite wide. This small in-line connector has two tabs whioch are located towards the edge of the component. The pin sockets are spaced far aprt and are adequately siuzed. An example the 3-pin Molex connector. The second kind is one which copnnects the PC cooling fan and the power supply. The connector offers a red and black wire whicvh connects to the power suupply and makes sure that the electric current is continuous and constant. An example is the 4-pin Molex connector. The tihrd kind uses the characteristics of the above mentioned connectors and consists of two tabs at the centre and another tab which is located towaards the side. The spacing and the size is similar to the 3-pin and the 4-pin. A white wire may also be present whcih adds to the current and makes the fan move faster. An example is the Dell Inc. propritary. Author Resource:-> Here you can learn more about: <a href="http://thinklaptops.net/2009/11/buy-an-asus-ul20a-get-a-75-amazon-gift-certificate/">asus ul20a</a> Article From <a href='http://article2008.com/'>Article2008.com</a> </body></html>

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