A technician adds a video card to a single monitor system with an existing on-board video controller. After powering on the system, an error message appears on the monitor stating No Input Detected. Which of the following is the problem?

A. The add-on video card is conflicting with the onboard video controller.
B. The add-on video card is incompatible with the system.
C. The monitor is still connected to the onboard video controller.
D. The monitor cannot support the video resolution of the add-on video card.

Answer: C. The monitor is still connected to the onboard video controller.

Computer Science & Information Technology

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