First released in 2010, the HP Compaq Presario CQ56-110US is one of the models offered in the Compaq Presario Notebook series.

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comes on and goes off immediately

My Compaq cq56 comes on and goes off immediately keep for along time

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@osaretin1234does it power down or is it just your screen that turns black?


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There is a variety of things that could be going wrong with the computer, but there is a series of tests you could do to isolate the issue. Here's a question for you. Does the computer have a good battery? Does it continually shut off right after being turned on when plugged into a power source? Does the computer get past the HP logo and get to the Windows boot screen? And after the computer screen goes black, does the power light stay illuminated? These questions are all questions that will help isolate the problem.

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