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You are tasked with fixing a client's PC that hasn't booted after the latest test of the building's backup generator. As you analyze the computer, you notice that once it is powered on there is no display or beep codes. After 15 seconds, the fans inside the computer start spinning faster and making more noise. The computer was working fine before the test, and you verify that no one has opened the computer. Which of the following is most likely the problem?

The RAM was damaged by ESD
The motherboard was damaged by the power test.
The hard drive was erased due to the power test
The power supply was damaged and is nonfunctional

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