With the increasing number of fans that most enthusiasts tend to have in their systems these days, the ability to control these becomes a vital factor in being able to stay in control of both temperatures and acoustics. Most cases now have 4 to 8 fans and most high end CPU coolers need 2 fans or mores. Even some relatively high end motherboards don't offer enough fan ports for your needs, or aren't close enough to the fans to allow you to plug fan cables in. That combined with the fact fan control software can often be buggy and problematic means the modern enthusiast system can easily become a total nightmare.
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