Cannot use speakers/headphones: Sound card is missing?

[Pointless]

Hi,

I have recently built a desktop computer, that had minor issues that I had eventually worked around or found a solution to. This issue is an exception. When I first used my computer, everything was fine with sound, until I found that my graphics card was not inserted correctly, and I was running with terrible resolution. After fixing this issue, I had no sound. This was about 10 months ago. On and off throughout this period I began to try and fix this issue, by disconnected and uninstalling my GPU. I launched skype and trying calling someone, but it alerted me that my sound card was missing. I know this is not true, so I have 3 main theories: 1. The sound card was fried (not likely). 2. My graphics card audio overrode the onboard audio, 3. The two (GPU and sound card) were operating on the same frequency. As I have said before, I had sound before I re-installed my graphics card, so I would either appreciate a solution to switch back to onboard audio, or a way to use both somehow.


Specs: Motherboard: ASUS P8z77
Graphics Card: Nvida Ge Force 670
Processor: Intel i7 core.

 

[Pointless]

Please respond, this issue has been pressing me for almost a year, and I would really like it to be resolved.

 

[LookinAround]

Check your BIOS settings. Make sure onboard sound is enabled.

If it is, also make sure you've selected the correct Default sound device (lookin Conrol Panel sound ->Playback to check)

 

[Pointless]

Check your BIOS settings. Make sure onboard sound is enabled.

If it is, also make sure you've selected the correct Default sound device (lookin Conrol Panel sound ->Playback to check)

I forgot to mention that it says my speakers and headphones are not connected, when they are indeed connected. I have tripled checked that they are in the right area. So my computer does not let me choose my speakers or headphones as default audio devices. It only says that two are connected: Both are High Definition Audio Device.
As for the onboard audio, I already tried that to no success.