A technician is performing preventive maintenance on a desktop computer that has accumulated a significant amount of internal dust, which is causing it to overheat. Which of the following is the BEST method for cleaning the internal components?
Wipe all visible components with a dry, lint-free cloth.
Use a standard household vacuum cleaner with a brush attachment.
Use short bursts of compressed air to blow dust out of the case.
Gently clean the motherboard with a cotton swab and isopropyl alcohol.
Using short bursts of compressed air is the recommended method for removing dust from internal computer components. A standard household vacuum cleaner should not be used as its plastic nozzle can generate significant electrostatic discharge (ESD), which can damage sensitive electronics. Wiping with a cloth is not effective for reaching into heatsinks and fans, and it can also generate static. Isopropyl alcohol is used for cleaning specific residues, such as thermal paste, not for general dust removal.
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Why is compressed air the best option for cleaning internal computer components?
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What is electrostatic discharge (ESD) and how can it damage computer components?
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When should isopropyl alcohol be used for cleaning computer components?
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Hardware and Network Troubleshooting
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