The correct answer is coil whine from the voltage regulator modules. This high-pitched whine occurs when the CPU draws heavy current under load, causing the inductors and VRM components to vibrate at audible frequencies due to electromagnetic forces. On the CompTIA A+ Core 1 220-1201 exam, this question tests your ability to distinguish between actual CPU failure and normal power delivery behavior—a common trap is assuming the CPU itself is defective. Remember that coil whine is a symptom of electrical resonance in the VRMs, not a hardware fault. Memory tip: “Whine from the VRM, not the CPU’s design—load makes the coils align.”
220-1201 CPU Practice Question
This 220-1201 practice question tests your understanding of cpu. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 customer reports that their desktop computer intermittently freezes and emits a high-pitched whine. The issue occurs more frequently under heavy load, such as when rendering video. Which CPU-related feature is most likely causing this symptom?
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
✓
Coil whine from the voltage regulator modules
The high-pitched whine from a CPU under load is typically coil whine, caused by electrical vibrations in the voltage regulator modules (VRMs) or inductors. This is not a sign of failure but can be annoying. The correct answer identifies the source as power delivery components, not the CPU itself.
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.
✗
CPU throttling due to overheating
Why it's wrong here
Throttling reduces performance to prevent damage, but it does not produce a whine; it would cause slowdowns, not a sound.
✓
Coil whine from the voltage regulator modules
Why this is correct
Coil whine is a common electrical noise from VRMs under high current draw, often heard during heavy CPU load.
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.
✗
A failing CPU fan bearing
Why it's wrong here
A failing fan bearing would produce a grinding or rattling noise, not a high-pitched whine, and is not directly related to CPU load.
✗
Incorrect CPU multiplier setting in BIOS
Why it's wrong here
An incorrect multiplier would cause system instability or failure to boot, not a whining sound during normal operation.
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.
CPU — This question tests CPU — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Coil whine from the voltage regulator modules — The high-pitched whine from a CPU under load is typically coil whine, caused by electrical vibrations in the voltage regulator modules (VRMs) or inductors. This is not a sign of failure but can be annoying. The correct answer identifies the source as power delivery components, not the CPU itself.
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.
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Question Discussion
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