Question about HP Pavilion A520n (DW233A#ABA) PC Desktop

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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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Re: black screen when i turn my cpu on hp pavilion a520n

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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Re: black screen when i turn my cpu on hp pavilion a520n

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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Re: black screen when i turn my cpu on hp pavilion a520n

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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My hp pavillion a000 turns on but has a black screen

In the abscence of more details, try the following:

Firstly, did you get any beeps as the system powered on? If so, how many and what sequence?
If you get One beep, all is well. any other beeps,means problems

Secondly: Try connecting the computer to another monitor, see if you get a screen there. If you do, the issue is with the monitor, if not, the issue is with the tower.
Thirdly: Check the video is woking by EITHER changing the video card or plugging the monitor into the onboard video port
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HP Pavilion A520N will not power up. Green light

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2 Answers


if it is in warranty i would suggest you to call the hp guys .... if out of waranty please post the exact error message

Sep 12, 2007 | HP Pavilion A520n (DW233A#ABA) PC Desktop

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