Learn why dust buildup blocking airflow is the most likely cause when a laptop overheats and shuts down unexpectedly. Discover how dust affects cooling and the importance of regular cleaning for laptop reliability and performance.
Table of Contents
Question
A customer complains that their laptop gets extremely hot and sometimes shuts down unexpectedly. What is the most likely cause?
A. Dust buildup blocking airflow
B. A failing graphics card
C. A slow internet connection
D. A corrupted operating system
E. An outdated BIOS
Answer
A. Dust buildup blocking airflow
Explanation
Overheating is often caused by dust accumulation in cooling fans and vents, restricting airflow.
Dust accumulation inside a laptop is a leading cause of overheating and unexpected shutdowns. Dust can clog cooling fans, block air vents, and coat heat sinks, all of which prevent proper airflow and heat dissipation. When airflow is restricted, internal temperatures rise rapidly, triggering thermal protection mechanisms that force the laptop to shut down to prevent hardware damage. Over time, repeated overheating can cause permanent damage to internal components and reduce the lifespan of the device.
Common symptoms of dust-related overheating include:
- The laptop feeling excessively hot to the touch.
- The fan running loudly or constantly.
- Sudden shutdowns during normal or intensive use.
To resolve the issue, the laptop should be powered off, unplugged, and cleaned—ideally by removing the back panel and using compressed air to clear dust from fans, vents, and heat sinks. Regular cleaning is recommended to maintain optimal cooling and prevent future overheating problems.
CompTIA A+ Core 1 220-1101 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the CompTIA A+ Core 1 220-1101 exam and earn CompTIA A+ Core 1 220-1101 certification.