Episode 115 — Visual and Auditory Cues — LED, LCD, and Unusual Sounds or Smells

Certified - CompTIA Server+ Audio Course

This episode examines how to use visual and auditory indicators to troubleshoot hardware problems. We discuss interpreting status LEDs, reading LCD panel error codes, and recognizing abnormal sounds such as failing fans or clicking drives. The importance of detecting unusual smells, like burnt circuitry, as a sign of component failure is also covered.

Practical examples include tracing a network outage to a switch with red link lights, or diagnosing a drive failure from repeated clicking noises. Troubleshooting steps involve confirming the suspected fault through diagnostics, replacing damaged components, and addressing root causes to prevent recurrence. Understanding these sensory cues allows candidates to quickly assess hardware conditions without relying solely on software tools. Produced by BareMetalCyber.com, where you’ll find more cyber prepcasts, books, and information to strengthen your certification path.