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PWM Controlled Fans- HELP!

Last response: in Components
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What are PWM-Controlled Fans? I've heard about the Arctic Cooler Xtreme Plus ii haveing PWM controlled fans which got me confused. I am thinking of buying the product and would like to know more. All I need to know is...Do I control PWM Fans or is it automatic? Please Help! =D

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More about : pwm controlled fans

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Pulse-Width Modulation (PWM) is a technology that automatically controls the fan speed based on factors such as temperature and at times, computer activity.

Arctic Cooling improves this by introducing PST (PWM Sharing Technology). So if you have more than one Arctic Cooling fan, temperature information will be shared allowing all fans to work together.

If you're an enthusiast, then you should go for a manual fan speed controller.
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