Practice Quiz

CompTIA A+ 220-701/702 Practice Exam

Category - Essentials

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Sarah is experiencing a strange problem with her computer. The computer shuts down unexpectedly every half hour. Which of the following could be the most probable cause of the issue?
  1. Malfunctioning processor cooling fan
  2. Faulty RAM
  3. Faulty hard drive
  4. Dead CMOS battery
Explanation
Answer - A - The most probable cause of a computer shutting down unexpectedly is a malfunctioning processor fan. In the absence of a component which can dissipate heat generated by the processor, the processor overheats. Eventually, when a threshold temperature is reached, the OS shuts down the computer.

Key Takeaway: The four main causes that contribute to a processor shutting down are:

1. Hardware issue with the processor fan.
2. Hardware issue with the heat sink that is used to dissipate the heat from the processor.
3. Dust and dirt accumulated on the processor fan makes it less effective.
4. Not enough thermal glue between the processor and heat sink.
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