3.14.1 Power Supplies

To switch between AC and DC power

To control the speed of the cooling fan

To regulate the power output to the computer components

To toggle the input voltage between 115 or 230 volts (correct)

To regulate the flow of DC power to the computer components

To connect the power cord from the wall to the power supply (correct)

To provide additional cooling to the power supply

To switch between different voltage ranges

15 volts, 4 volts, and 2 volts

12 volts, 5 volts, and 3.3 volts (correct)

10 volts, 7 volts, and 2.5 volts

9 volts, 6 volts, and 3 volts

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