100-140 Question 46
Select 2A user reports that their desktop computer is frequently shutting down unexpectedly. Upon investigation, you notice the system feels unusually warm and the internal fan is making a loud noise. What could be the most likely reasons for this issue?
- A
The computer's power supply unit (PSU) is failing.
- B
The CPU is overheating due to a clogged or malfunctioning cooling system.
- C
The operating system has a corrupted system file.
- D
There is a buildup of dust inside the computer case.
- E
The hard drive has reached its full capacity.
Show answer and explanation
Correct answers: B, D
Explanation
The symptoms of frequent shutdowns, excessive heat, and loud fan noise strongly suggest an overheating issue. Overheating can result from a clogged or malfunctioning cooling system or a buildup of dust inside the computer case, both of which obstruct airflow and prevent effective cooling.
- A. Incorrect.
A failing power supply unit (PSU) can cause shutdowns, but it would not explain the heat buildup and loud fan noise observed in this scenario.
- B. Correct.
An overheating CPU is a common cause of unexpected shutdowns, and a clogged or malfunctioning cooling system could lead to excessive heat and loud fan operation.
- C. Incorrect.
While a corrupted system file could cause performance issues or errors, it would not explain the heat and fan noise described here.
- D. Correct.
A buildup of dust inside the computer case can block airflow, causing overheating and forcing the fan to work harder, resulting in noise and potential shutdowns.
- E. Incorrect.
A full hard drive can impact performance but does not cause overheating or fan issues.