220-802 · Question #443
What is a possible reason for the symptom: power supply fan and case fans spin, but no power to other devices?
The correct answer is B. Improper connectivity. If the PSU fan and case fans are spinning, the power supply itself is functioning and outputting voltage. However, if other components (hard drives, optical drives, motherboard peripherals) are not receiving power, the most likely cause is improper connectivity - meaning power…
Question
What is a possible reason for the symptom: power supply fan and case fans spin, but no power to other devices?
Options
- AFailed hard drive
- BImproper connectivity
- CDrive not recognized
- DFailed RAM
How the community answered
(36 responses)- A3% (1)
- B92% (33)
- D6% (2)
Explanation
If the PSU fan and case fans are spinning, the power supply itself is functioning and outputting voltage. However, if other components (hard drives, optical drives, motherboard peripherals) are not receiving power, the most likely cause is improper connectivity - meaning power cables are not fully or correctly seated into the connectors on those devices. A failed hard drive (A) or failed RAM (D) would not prevent power delivery to other components, and a drive not recognized (C) is a software/BIOS issue, not a power issue.
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