No signal when i start computer

hi everyone, i have a compaq 5700f running windows 7, its been a good computer for me until yesterday. While i was using the computer suddenly my screen said no signal, the fans run when i bootup but no keyboard lights, no dvd light blinks and no signal. all 3 fans run. Please help me...

Here is an HP article, Windows 7 Does Not Start.  It contains an informative video and instructions for a number of conditions when Windows won't start.  Please start you troubleshooing with the suggestions in the document.
Thanks,
GeorgeFN
I work on behalf of HP.

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    We're sorry.
    We can't find the article you're looking for.
    Please return to the Apple Support homepage.
    Sigh.

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