Which connector for which fan - CPU fan, chassis fan, power fan

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charles_i

charles_i

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Apr 2, 2013
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For my ASRock H97 Anniversary mother board, I was going to add a Noctua NF-F12 case fan, however it seems that it has a 4 pin connector and there is only one 4-pin connector for CPU fan on this board which is obviously in use, Should it be connected to the 4-pin chassis fan connector? It seems that is the only option,

Also, where do I connect the built-in 3-pin case fan? Is this a chassis or power fan connection?

Thanks
Charles

 
Solution
luketexas
Does your case have a fan controller anywhere behind the mobo on the backside? The 4th pin would only be to control speed, so you can use a 3 pin connector. As long as the mobo connector says Sys fan then it should be fine to plug your fans into them. If you have run out of spots and don't have a fan controller, consider buying one.

You could buy something cheap like either of these:
http://www.amazon.com/Phobya-4-Pin-Splitter-Power-Eight/dp/B00OD7MO6E/ref=pd_sim_147_48?ie=UTF8&refRID=0S0ZG8T6PX0E1WGC15DG

http://www.amazon.com/Phobya-4-Pin-Molex-Connector-Connection/dp/B004CLDSRU/ref=pd_sim_147_13?ie=UTF8&refRID=0S0ZG8T6PX0E1WGC15DG
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luketexas

luketexas

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Sep 14, 2015
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Does your case have a fan controller anywhere behind the mobo on the backside? The 4th pin would only be to control speed, so you can use a 3 pin connector. As long as the mobo connector says Sys fan then it should be fine to plug your fans into them. If you have run out of spots and don't have a fan controller, consider buying one.

You could buy something cheap like either of these:
http://www.amazon.com/Phobya-4-Pin-Splitter-Power-Eight/dp/B00OD7MO6E/ref=pd_sim_147_48?ie=UTF8&refRID=0S0ZG8T6PX0E1WGC15DG

http://www.amazon.com/Phobya-4-Pin-Molex-Connector-Connection/dp/B004CLDSRU/ref=pd_sim_147_13?ie=UTF8&refRID=0S0ZG8T6PX0E1WGC15DG
 
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