I have several 4 wire, 12 volt CPU fans I have collected from salvaged PC's. I want to wire them to run off of an external battery pack. Assuming I am delivering the right voltage, how do I wire these fans to blow at full speed when I turn my switch (The switch being a simple single poll switch in series with circuit)
? any ideas? I cannot seem to find any documentation on which pins/wires do what on a CPU fan