11-08-2013 02:20 PM
I understand you are having an issue with the audio on your Compaq Presario CQ56-240CA Notebook and that you had a boot issue as well. I suggest Troubleshooting Audio Problems with External Speakers, Headphones, and HDMI Sound Devices.
Here is a link to different sound issues you may be experiencing, this would allow you to choose the most appropriate document based on the description of the title and the details of the issue, in case the one I chose for you does not resolve the issue.
From what you described you got the computer to boot after it wouldn't, if you ever have a boot issue refer to computer wont boot or blank screen.
Hope this helps.
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