Connecting the pump Alphacool DDS Version

[LastSoldier]

I purchased Alphacool Eissturm Gaming Copper 30.The pump has two connectors: Molex (black and yellow wires) and 3-pin (with one blue wire). Where to connect Molex is clear. But where to connect a 3-pin (with one blue wire) I can not understand, tell me. I think that in CPU_fan or AIR Pump. The instructions say to connect to the motherboard, but it is not clear which of the connectors to connect to. Help me decide which specific connector on the motherboard to connect the 3-pin (with one blue wire).

 

[Luckystricker]

Hi @LastSoldier

The plug with the blue cable is for reading out the pump speed. You can plug it into any free 3 or 4 pin fan connector on the mainboard, or to a fan control. Then you can always see what speed the pump is running at. With a 3-pin connection you have ground (-), plus (+) and the third is the speedometer signal to be read out, but since the pump gets the power via the Molex connector, the two are eliminated. With the 4 pin connection, the 4 cable is there to regulate the speed.

Best Regards