i am using hp dc 5850 system and i currently inserted nvidia gforce gt520 the sound driver i uses works perfectly when there is no nvidia card in the system but as i insert the card the sound driver stops working and it works only through hdmi and there is only single icon of HDMI in my pc sound control manu i tried every sound driver but no one works to give me sound through the speakers
Go to the sound panel, playback section and RIGHT click in an empty area. Check the boxes to show disabled and disconnected devices, if not already checked, and then see if your "speakers" show up.
Here is the link to the HP drivers, make sure you are using the HP supplied driver as many times non Vendor sound drivers either do not work or do not work correctly. HP Compaq dc5850 Small Form Factor PC - Download drivers and software - HP Business Support Center
If the two suggestions do not work, with the new video card installed, go to the Device Manager, RIGHT click on the entry for the sound device and then LEFT click "Uninstall" DO NOT check the box to uninstall the drivers. Then restart the PC and when Windows starts it should detect and reinstall the sound. If there was a Windows sound corruption this usually takes care of it.
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