COMPTIA A+ Practice Exam 2025 - Free CompTIA A+ Practice Questions and Study Guide

The correct answer regarding the post code that indicates a motherboard problem is one long and one short beep. This beep code is a standard message from the BIOS during the power-on self-test (POST) sequence and serves as an auditory alert for users diagnosing hardware issues.

The one long beep signals that there is a significant issue detected, while the subsequent short beep often provides additional context regarding what specific problem has occurred, frequently related to hardware failures like RAM not being detected or issues with the motherboard itself. This combination of beeps is designed to help troubleshoot and identify the source of the problem quickly, allowing for more efficient repairs or replacements.

Different systems or BIOS manufacturers may have variations in their beep codes, but generally, one long and one short beep reliably points to a motherboard-related issue. Understanding these codes is essential for effectively diagnosing and resolving hardware problems.