Abstract: A universal driving apparatus of a computer system, including a receptacle, a power switch, an integrator and a comparator, is provided to identify and drive a first fan and a second fan. The receptacle connects to the first fan or the second fan for electricity supply and system control. The integrator integrates speed signals of the first fan and the second fan to output an integrated-speed voltage. The comparator compares the integrated-speed voltage and a comparative voltage to output a comparative signal. Accordingly, the computer system uses the comparative signal to identify the fan type and actuate the first fan or the second fan correctly.

Abstract: A universal driving apparatus of a computer system, including a receptacle, a power switch, an integrator and a comparator, is provided to identify and drive a first fan and a second fan. The receptacle connects to the first fan or the second fan for electricity supply and system control. The integrator integrates speed signals of the first fan and the second fan to output an integrated-speed voltage. The comparator compares the integrated-speed voltage and a comparative voltage to output a comparative signal. Accordingly, the computer system uses the comparative signal to identify the fan type and actuate the first fan or the second fan correctly.

Abstract: A certain position of a circuit board is provided for configuring plural first and second electrical contacts therein to selectively connect a first signal connecting port or a second signal connecting port within the certain position. The first and second electrical contacts are in circuit connection with one or more signal processor to respectively transmit a first and a second signal for processing. A circuit switch is set in circuit connection between the first electrical contacts and the signal processor, which has a signal connecting element as an extra transmission interface of the first signal thereon.