The answer is an overheating CPU or GPU. When a PC shuts down during gaming overheating, the system’s thermal protection mechanism—built into the processor and graphics card—triggers a forced shutdown to prevent permanent silicon damage. Under sustained gaming load, the CPU or GPU generates intense heat; if the cooler cannot dissipate it fast enough, the temperature exceeds the safe threshold (typically around 100°C for CPUs), and the motherboard’s thermal sensor initiates an immediate power-off. On the CompTIA A+ Core 1 220-1201 exam, this scenario tests your understanding of thermal management and the difference between hardware failure and environmental issues. A common trap is assuming a spinning fan means adequate cooling, but dust-clogged heatsinks or dried thermal paste still prevent heat transfer. Always check for airflow blockages first. Memory tip: “Hot load, cold shutdown” — if the case is warm and fans spin, suspect the heatsink, not the fan.
220-1101 Core PC Hardware Troubleshooting Practice Question
This 220-1201 practice question tests your understanding of core pc hardware troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A user complains that their computer randomly shuts down after about 30 minutes of gaming. The case feels warm to the touch, and all fans are spinning. Which component is most likely causing the shutdowns?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Overheating CPU or GPU
Random shutdowns under load, especially with a warm case, strongly suggest overheating. The CPU or GPU thermal protection is triggering to prevent damage. Cleaning dust from heatsinks and fans, and ensuring proper airflow, is the first step.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Failing hard drive
Why it's wrong here
A failing hard drive causes data errors or blue screens, not thermal shutdowns.
✗
Insufficient RAM
Why it's wrong here
Insufficient RAM causes slowdowns or crashes, not shutdowns due to heat.
✓
Overheating CPU or GPU
Why this is correct
Thermal protection mechanisms shut down the system to prevent damage when components exceed safe temperatures.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Loose power cable
Why it's wrong here
A loose power cable would cause immediate shutdown or failure to power on, not timed shutdowns under load.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1201 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1201 question in full detail.
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Core PC Hardware Troubleshooting — This question tests Core PC Hardware Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Overheating CPU or GPU — Random shutdowns under load, especially with a warm case, strongly suggest overheating. The CPU or GPU thermal protection is triggering to prevent damage. Cleaning dust from heatsinks and fans, and ensuring proper airflow, is the first step.
What should I do if I get this 220-1201 question wrong?
Identify which 220-1201 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A user's PC randomly restarts during heavy workloads, such as video rendering. The CPU temperature reads 95°C under load. The heatsink fan is spinning, but the thermal paste appears dry and cracked. What is the most effective first step?
medium
A.Replace the CPU fan with a higher RPM model.
✓ B.Apply new thermal paste between the CPU and heatsink.
C.Underclock the CPU in BIOS.
D.Add an additional case fan.
Why B: High CPU temperatures under load with dry thermal paste indicate poor heat transfer. Replacing the thermal paste is the most direct and effective solution, as it restores proper thermal conductivity between the CPU and heatsink.
Last reviewed: Jun 18, 2026
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