单选题A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）AMove the power supply voltage switch to 220 volts.BAdd an additional fan to help cool the computer.CReplace the cable that attaches the power supply to the motherboard.DReplace the power supply.
单选题
A technician receives a computer for repair and observes that the fan on the power supply is not moving. Which of the following should the technician do？ （）
A
Move the power supply voltage switch to 220 volts.
B
Add an additional fan to help cool the computer.
C
Replace the cable that attaches the power supply to the motherboard.
D
Replace the power supply.
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