3 pin fan into 4 pin slot?

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So basically my question is, can I plug my 3 pin fans into a 4 pin splitter into a CHA_FAN slot on the motherboard, or will it cause problems?

In this video I will show you have to use the Cylindrical & Pin-Slot Don't forget to watch A sliding joint eliminates 2 DoF A pin-in-slot joint eliminates 1 DoF Page 2 AME 352

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