A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which of the following is the MOST likely cause?

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C. The internal adapter has not been disabled. Most motherboards default to using the onboard/integrated video adapter in BIOS settings. When a dedicated GPU is installed, the BIOS must be configured to disable the internal adapter or set the primary display to the PCIe slot - until this is done, all video output goes to the onboard port and the new card produces no signal.

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A. The display is defective. The display is unlikely defective because the power indicator light is on and the same monitor presumably worked before the card was installed.

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B. The video card needs to be flashed. Flashing a video card's firmware is an advanced and uncommon procedure that would not be a first-line diagnosis for a new card with no display output.

Answer

D. The new video card is defective. A defective new video card is possible but statistically less likely than a configuration oversight, especially since the OS appears to be loading normally through the onboard video.

A technician installs a new video card in a desktop with onboard video. The technician boots the unit but sees no display. The monitor power light is on and the OS seems to be loading. Which of the…

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