A technician is installing a new power supply in an office located in Europe. The power outlets in the office provide 230 V AC. Which of the following power supplies should the technician select?
A power supply with a manual voltage switch set to the 115 V position.
A power supply that supports only 110-120 VAC.
A power supply that provides a 230 V DC output.
A power supply that supports an input voltage of 220-240 VAC.
European mains voltage is standardized at 230 V, with a tolerance typically between 220 V and 240 V. A computer's power supply unit (PSU) must be able to accept this input voltage. Many modern PSUs are auto-ranging or have a manual selector switch. Selecting a PSU that only supports 110-120 V, or using the incorrect setting on a manual switch, would likely damage the unit and potentially other system components due to overvoltage.
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