A desktop PC with an AMI BIOS was brought in because it no longer shows any video output. When the technician presses the power button, the internal speaker emits eight short beeps, pauses, and then repeats the pattern. Which hardware component is MOST likely responsible for this POST failure?
Faulty or improperly seated discrete graphics adapter
With AMI BIOS firmware, eight consecutive short beeps indicate a display memory read/write failure, which almost always points to a problem with the video adapter (either the discrete graphics card or the integrated GPU circuitry). RAM problems, CPU-power issues, or a bad boot drive produce different beep patterns or would allow the system to at least reach the storage detection phase, so those choices are less likely.
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What is POST and why does it emit beep codes?
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What should you check if you suspect a problem with the discrete graphics adapter?
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How do the beep codes differ for common hardware failures like RAM or CPU issues?