QUOTE(HarshWinter @ Sep 8 2007, 09:25 AM)
Edit: For cathodes you only need the first 2 wires (i think at least), so you could just cut the molex and solder the 2 wires to a 5v or 12v spot on the mobo.
Correct. Two of the pins are for power and one is to relay information back from the fan about RPMs (so not needed).
Just be careful about how much power you draw from the mainboard.