I've been looking at building my first PC here shortly and I have a question about fan control. The H440 has caught my eye but I noticed it does not have an integrated fan controller like some other cases do. My understanding is that without a fan controler, the fans will spin at their maximum rpm because they are running on full voltage. Is this correct? Or will my motherboard controls the fan speeds based on temperatures that it's somehow aware of?

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buildapc

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SmokeyDuhBaer
2 Answers

Depends on the fan in question and the fan header you plug it into....

3 pin fans use voltage to regulate the speed and can go into a 3 pin or 4 pin header.
4 pin fans use pwm functionality and can also be controlled by voltage. If you plug a 3 pin fan into a 4 pin header you will have no control over the speed. However if you plug the 4 pin fan into a 3 pin header it can still be controlled by voltage. This is just for the headers on your mobo. Fan controllers are a completely different story.

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blackviper6

The fans will be spinning at full speed if they are connected to the the h440 fan hub. If you do not want the fan to spin at max speed connect them to the mobo

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kebeaner
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