TestOut LabSim A+ Certification Practice Exam

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What should you do to correct a system that no longer boots after testing with a second CPU?

Replace the CPU with a new one
Check and replace the terminating resistor
Reset the BIOS settings
Reinstall the operating system

The correct answer is: Check and replace the terminating resistor

To address a situation where a system no longer boots after testing with a second CPU, resetting the BIOS settings serves as an essential troubleshooting step. When a different CPU is installed, the system’s firmware (the BIOS) may not recognize the new CPU or its specific features owing to configuration settings that were appropriate for the previous CPU. Resetting the BIOS helps restore factory defaults, allowing the system to correctly identify and configure itself for the new CPU. This step is particularly effective because a reset can clear settings that might have been unintentionally altered, such as CPU voltage settings or clock multipliers, which can prevent the system from booting. Choosing to replace the CPU may not be necessary if the underlying issue relates to BIOS configurations rather than a hardware failure. Checking and replacing the terminating resistor would typically be relevant in contexts involving specific types of memory or bus configurations, not in standard CPU installations. Reinstalling the operating system might be overly drastic unless the OS itself is corrupted, as the issue lies primarily with the CPU configuration rather than the operating system.