question about MCP655-B

[maximagle]

the user guide said that the pump is designed to be connected to computer power suppy using the molex 4 pin connectors. however, there is also a 3 pin connector. am i supposed to connect it to my motherboard?
it might sound stupid to you but i just want to make sure that. thank you!

 

[BrinNutz]

I believe that is for controlling the speed...If so, you can connect it to a controller to vary the speed.