![]() ![]() Ball bearings last longer but are usually more expensive. The simplest are sleeve bearings, where two lubricated surfaces rotate past each other they are inexpensive but only last as long as the lubricant. In general, it's more important to get the fans in the right place than it is to hold out for computer case 120 mm fans.ĭifferent fans have different kinds of bearings. That makes them quieter and helps extend their life because it's easier on the bearings. Put another way, 120 mm computer case fans will move the same amount of air at a lower speed than 80 mm computer case fans. By working with physics rather than against it, you get the most use out of your fans.Īll other things being equal, a bigger fan will always move more air than a smaller one. This sets up a natural airflow pattern of cool air coming in, rising, and then exhausting from the rear. As a general rule, you want your intake fans in the front of the case near the bottom, and your exhaust fans at the top in the rear. Hot air rises, something you should remember when it comes to placing computer fans. The more air you can get out of your case, the more heat it can carry with it. Heat is the enemy, and for most owners, your computer case fans are your primary weapons for combating it. ![]() Just about every component in your computer generates heat, and if you don't get that heat out of the computer, you're going to find yourself looking at a blank screen sooner rather than later.
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