SK0-005 server-hardware-installation-management Practice Question
A server fails to power on after a technician replaced the power supply unit (PSU). The technician notices the server's LEDs are off and no fans are spinning. Which of the following should the technician do FIRST?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Check that the new PSU is properly seated and all power cables are connected
The FIRST step is to check that the new PSU is properly seated and all power cables are connected, as this is the most likely cause after a replacement. Replacing the motherboard or PSU again is premature without verifying connections. Checking incoming power is a possibility but less likely if the server was working before.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Replace the PSU with another new unit
Why it's wrong here
Replacing the PSU again without confirming connections wastes time and resources; the new PSU may be functional.
- ✗
Replace the motherboard
Why it's wrong here
Replacing the motherboard is an extreme step and not the first action; the issue is more likely a loose connection.
- ✗
Verify the incoming power is within acceptable voltage range
Why it's wrong here
While power input could be an issue, it is less likely after a swap and should be checked only after verifying internal connections.
- ✓
Check that the new PSU is properly seated and all power cables are connected
Why this is correct
After a PSU replacement, improper seating or disconnected cables are common. This low-effort check addresses the most probable cause.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed July 2026 · checked against the official CompTIA exam blueprint
This SK0-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SK0-005 exam.