Black screen when i turn my cpu on hp pavilion a520n

Not an expert :) When I turn on my cpu I get a beep and a message comes on the screen saying "warning pc entering power saving mold" also red green & blue labels or gages underneath can you or anyone out there help me Note: the fans are working The montor is working because I pluged it to my lap top thanks Gege3

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The red, blue, green... are they bars? sound like the test screen I've seen on a few monitors. This happens when the monitor is on but not connected properly to the computer. You could have the cable from the monitor to the computer loose, plugged into the wrong port (if you have more than one), you could have video card trouble (broken, loose or a power issue on some high end video cards), or a few other less likely possibilities.

Posted on Jul 10, 2007

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Have you tried all the instructions before. If so, try changing the another video card. Be sure to tight well the card to the board.

Posted on Jul 11, 2007

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Are you working on battery without connecting the laptop to the mains power ? Please put the laptop on adapter power and recheck. Rajesh

Posted on Jul 10, 2007

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