220-802 · Question #590
A technician is dispatched to repair a computer that appears to boot correctly, except no video output is being displayed. No beep codes are given by the computer, but drive activity lights and…
The correct answer is A. Onboard video is present. When the technician removed the discrete video card, the system automatically fell back to the onboard (integrated) graphics built into the motherboard or CPU. This explains why the computer suddenly displayed video properly - it was never outputting to the discrete card's port…
Question
A technician is dispatched to repair a computer that appears to boot correctly, except no video output is being displayed. No beep codes are given by the computer, but drive activity lights and keyboard lights work correctly. The technician decides that the video card may be defective and removes it from the computer, expecting the computer's POST process to provide beep codes with the card removed. Instead the computer boots properly. Which of the following is MOST likely the cause?
Options
- AOnboard video is present
- BThe onboard speaker is defective
- CThe monitor is defective
- DThe RAM should be reseated
How the community answered
(28 responses)- A82% (23)
- B11% (3)
- D7% (2)
Explanation
When the technician removed the discrete video card, the system automatically fell back to the onboard (integrated) graphics built into the motherboard or CPU. This explains why the computer suddenly displayed video properly - it was never outputting to the discrete card's port where the monitor was connected (or the card itself was faulty), and onboard video took over once the card was absent. The absence of beep codes with the card installed (rather than after removal) also supports this: the system was completing POST successfully with onboard video handling display, unaffected by the discrete card. A defective onboard speaker (B) would only explain missing beep codes, not the absence of video. A defective monitor (C) would not suddenly start working when the card was removed. Reseating RAM (D) is unrelated to this specific sequence of events.
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