A user reports that their desktop computer shuts down abruptly at random times. After talking to the user and performing some basic checks, you form a theory that the power supply might be failing. You then verify the theory by using a multimeter to test the outputs of the power supply and confirm that the voltages are inconsistent. What is the NEXT step you should take to resolve the problem?
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Perform a system restore to a previous point when the computer did not shut down.
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Reboot the computer and run a virus scan.
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Upgrade the BIOS/UEFI firmware as it could be causing power management issues.
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Replace the power supply unit with a new, properly rated unit.
Once the hypothesis about the power supply being the cause of the problem is confirmed with evidence from the multimeter test, the next logical step is to replace the faulty power supply. Prior to proceeding with this action, though, you should consider any necessary backups, consult corporate policies, and if advised, inform the affected parties of the impending change.
Ask Bash
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What is a power supply unit (PSU) and what does it do?
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How do you test a power supply using a multimeter?
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What should you consider before replacing a power supply unit?