Question 8 of 144
SK0-005 server-hardware-installation-management Practice Question
A server has been intermittently crashing, and the system logs repeatedly show 'Machine Check Exception (MCE) errors' referencing a specific CPU core. The server is under warranty. The technician suspects a hardware fault. Which of the following actions should be taken FIRST to resolve the issue while minimizing downtime?
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
✓
Run a diagnostic stress test to confirm the CPU failure.
Machine Check Exceptions are serious hardware errors often indicating a failing CPU or system board. Before replacing components under warranty, it is best practice to run diagnostics to confirm the failure and gather evidence for the vendor. Option D is correct because diagnosing the failure first avoids unnecessary parts replacement and provides documentation for warranty service. Option A is incorrect because disabling the core might temporarily mask the issue but does not resolve the root cause and could degrade performance. Option B is incorrect because replacing the CPU without confirming the fault could waste time and resources if the issue lies elsewhere (e.g., motherboard). Option C is incorrect because firmware and driver updates are unlikely to fix a confirmed hardware MCE, and applying them would delay actual repair.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Update the server's firmware and device drivers to the latest versions.
Why it's wrong here
MCE errors are typically hardware faults. While firmware/driver updates are good practice, they are unlikely to resolve a hardware MCE and delay the actual repair.
- ✓
Run a diagnostic stress test to confirm the CPU failure.
Why this is correct
Confirming the fault with diagnostics is the proper first step under warranty. It provides evidence for the manufacturer, ensures correct part replacement, and avoids unnecessary downtime from trial-and-error swapping.
- ✗
Disable the faulty CPU core in the BIOS and continue monitoring.
Why it's wrong here
Disabling a core is a workaround, not a fix. It reduces processing capacity and does not address the underlying hardware fault that could affect other components.
- ✗
Replace the CPU with a known-good unit immediately.
Why it's wrong here
Without diagnostic confirmation, you may replace a functional CPU while ignoring a motherboard or socket issue, leading to continued errors.
Visual reference
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Last reviewed: Jul 26, 2026
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