Can’t figure out where to plug aio cooler into

Jun 8, 2018
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I have 4 cords. 2 that are attached to the actually pump of my Corsair h100iv2. Some type of splitter which I have no idea how to use it has a 4 pin and 3 pin connector. The other cord attached to the block is a 3 pin I’m assuming it’s the pump power. Then I have 2 fans on the radiater which are 4 pin http://