100-140 Question 110
Select 3A user reports that their desktop computer is frequently shutting down unexpectedly. Upon investigation, you notice that the computer case feels unusually warm. Which of the following steps should you take to troubleshoot and resolve the issue?
- A
Check if the computer’s fans are operational and free from dust or debris.
- B
Replace the computer’s power supply unit immediately.
- C
Verify that the CPU thermal paste is properly applied and the heatsink is securely attached.
- D
Ensure that the computer is located in a well-ventilated area, away from heat sources.
- E
Run a complete diagnostic on the hard drive to check for bad sectors.
Show answer and explanation
Correct answers: A, C, D
Explanation
The symptoms described, such as unexpected shutdowns and a warm computer case, strongly indicate an overheating issue. Key troubleshooting steps include inspecting the cooling system (fans, thermal paste, heatsink), ensuring proper ventilation, and eliminating heat sources. Replacing the power supply or running a hard drive diagnostic are not directly relevant to the issue at hand.
- A. Correct.
Dust accumulation or non-functional fans can cause overheating. Checking and cleaning them is a crucial step in resolving thermal issues.
- B. Incorrect.
While a faulty power supply can cause shutdowns, immediately replacing it without verification is not an effective troubleshooting step in this scenario.
- C. Correct.
Improper thermal paste application or a loose heatsink can result in poor heat dissipation, causing the CPU to overheat and lead to shutdowns.
- D. Correct.
Poor ventilation or proximity to external heat sources can cause the computer to overheat. Ensuring proper airflow and placement is essential.
- E. Incorrect.
A hard drive diagnostic is unrelated to the symptoms of overheating and unexpected shutdowns in this scenario.