TestOut LabSim A+ Certification Practice Exam

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What action should you take if the fan in a power supply is malfunctioning?

Remove and replace the power supply
Repair the fan
Clean the fan
Install a secondary fan

The correct answer is: Remove and replace the power supply

In the case of a malfunctioning fan in a power supply, replacing the entire power supply is the most prudent course of action. Power supplies are complex components, and a failing fan can lead to overheating, ultimately damaging the power supply and potentially affecting other components in the system. While maintenance such as cleaning might help in the short term if dust accumulation is the issue, it does not address underlying mechanical or electronic failures. There are risks associated with trying to repair a fan within a power supply, as this could void warranties and may not guarantee the safety or efficacy of the unit after modification. Installing a secondary fan could also be a temporary measure at best but does not solve the inherent problem of a failing or damaged power supply. Ensuring reliable, continuous operation of the power supply by replacing it entirely mitigates risks of failure and extends the lifespan of the system it supports.