I quit sound cards awhile ago. The onboard option was just to ez for my purposes.
I have all the required pieces for an HTPC setup. I just do not have to have all that sound. I wear headphones, half too. My pc is for playing game so its lean on junk hardware and software.
What kills me tho is that my issue was considered a bug or bad driver or????????????????
What it is/was, modern video cards identify themselves to the OS and monitor, OS and monitor are identified to vid card.
Vid cards now have onboard sound chips to deal with audio thru HDMI. When you plug in that vid card and apply the juice for the first time that card is presented with a decision, my NVidia sound chip is the default or the systems other sound option is the default, in my case RealTek HD Audio.
It makes the decision based on this,
I am plugged into a HDMI ported HDTV, its digital sound, it obviously needs my NVidia sound chip and nothing else or
I am plugged into a VGA monitor, no digital sound option, I will use the system sound option provided.
Those that are making a HTPC may want the vid card as default sound, its all digital and you are also using an AV sound system as well. For movie purposes you do not need a mic.
For a PC however, you want the PC to be the control head, not the HDTV. You want to input to system, most mobos are analog jacked!
Now the why's the wearfores, the reasons I do not really get, but it appears that if you do the initial fire up of a vid card connected to an HDMI HDTV with its own digital sound system, the onboard audio chip will become the default and negate, somehow, all other analog input, in my case mic jacks. So when you add a new vid card, install it with a vga monitor 1st, save the headache.