- 1). Disconnect the power supply from any source of electricity.
- 2). Check the voltage regulator just under the power socket. Make sure that you set the voltage to the correct amount for the country you live in. For USA, you must set your regulator to 115 volts by switching it over to the side, if you didn't already set it that way.
- 3). Connect the power supply to an outlet to see if the fan spins when you turn on the unit. If connected to a computer, you might need to turn the computer on also. If the fan doesn't spin, either your power supply's fan or the power cable needs replacement. Try another power cable to see which one of the two problems you encounter.
- 4). Try another outlet to see if it's the outlet causing the issue.
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