Question about Dell Dimension 5100 (D51L1) PC Desktop

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No video Hi:  I start on computer the green light is already but no video.

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  • Jeff Strader
    Jeff Strader May 11, 2010

    which green light? are the fans in the computer coming on? please describe the problem a little better if at all possible.

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  • 55 Answers

Try to check the light on the monitor. If it is amber, then check the video cable both from the back of the monitor and the tower. Try a known-good monitor. Check the diagnostic LEDS of the tower. There are four of them in the front panel. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer malfunctions, the color and sequence of the lights identify the problem. If you have a solid green light on the tower, no beeps heard and no video, check the LEDS. If you get 2-4 light, a possible graphics card failure has occurred. If the computer has an external graphics card, open the tower, remove the card and put it back in. If still persist, try a known-good card. If it still does not resolve the problem, try reseating the memory cards. Remove and put it back in. If still no go. Then it's a motherboard problem.

Posted on Nov 25, 2008

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