SVC-19A · Question #34
Linda states that the fans on her MacBook Pro are intermittently noisy. Which is the best component of AST to further isolate the issue?
The correct answer is C. CSD. CSD (Component Service Diagnostics) is the correct choice because it allows a technician to run targeted diagnostics on specific hardware components-in this case, the fan-making it ideal for isolating intermittent noise issues tied to a particular part rather than running a…
Question
Linda states that the fans on her MacBook Pro are intermittently noisy. Which is the best component of AST to further isolate the issue?
Options
- ATPT
- BIPT
- CCSD
- DVST
How the community answered
(55 responses)- A2% (1)
- B5% (3)
- C85% (47)
- D7% (4)
Explanation
CSD (Component Service Diagnostics) is the correct choice because it allows a technician to run targeted diagnostics on specific hardware components-in this case, the fan-making it ideal for isolating intermittent noise issues tied to a particular part rather than running a broad system sweep.
TPT (Thermal Performance Test) tests the system's overall thermal management under load, which may confirm heat-related behavior but won't pinpoint a noisy fan as the culpable component. IPT (Integrated Performance Test) runs a comprehensive stress test across multiple subsystems simultaneously, making it too broad to isolate a single component. VST (Visual System Test) is focused on display and graphics output and has no diagnostic relevance to fan noise.
Memory tip: Think "C for Component" - when a specific component is suspected (fan, speaker, keyboard), reach for CSD to zero in on it.
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