How does a fan controller work?

CristianDortona · Jun 17, 2014

If I buy a fan controller which is able to control 4 fans, does it mean that I don't need to connect them to the mobo but I can directly connect them to the fan controller?

For instance if I have a mobo which allows me to connect 2 fans and then I buy a fan controller which can control 4 fans, I'll have 6 free spots to use to connect fans, right?

popatim · Jun 17, 2014

Correct , just keep in mind that some motherbds require the presence of a system fan as well as the CPU fan (which all motherbds require)

bgunner · Jun 17, 2014

depending on what you want to do will dictate what you should do. the one fan that HAS to be connected to the motherboard is the CPU cooler fan, no matter what. The other spots on the motherboard are to allow you to connect case fans and usually have the motherboard control the speed. The main reason to get a Fan speed controller is to slow down fan speeds for better air flow and less noise. Yes some have the ability to connect 4 fans but depending on their locations you may need to get fan cable extensions for then to reach the controller.

yes if you put in a controller you will gain an extra 4 places that are controllable for fans. Now if you don't need the control you can buy the 4 pin molex to 3-4 pin fan header adapter and power them off the PSU. Some fans even come with this adapter included. These are your options and the reason to buy a Fan controller.

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How does a fan controller work?

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