Can the 3-pin AcoustiFan models be used the same as 2-pin fans?
: All AcoustiFan models use a 12VDC power supply across two wires: the red and the black wires. Black is GND and Red is normally +12VDC (this can be reduced to as low as +5VDC for slower, and therefore quieter operation). The White (or Blue) third wire is the ‘Signal’ wire that normally supplies the motherboard with a pulse signal for RPM monitoring. The third pin on the fan connector does not need to be wired into a motherboard socket for the fan to function properly.
