(3pin)Red to yellow(12pin)<BR>Black to black<BR>Yellow unconnected (if present).<P>That's how it normally goes anyway. I am assuming this is for +12v fans (most are).

Am putting together a PC and have run into a problem with the MB/case. The case fan has a 3-hole connector and all system fan connectors on the MB are 4-pin. Case: Fractal Design Define R5 Black ...

The most recent PC motherboards provide four pin connectors for cooling fans especially for the CPU fan. The older three pin fans are controlled by varying their DC voltage. The fourth pin on the ...