So I disabled my on board sound and switched the audio to only the HDMI port on my video card.
When I tried to change it back, I got the "No Audio Device Installed" error when I try to open the volume mixer.
I've done everything I can think of.
-Updated Drivers for the on board audio
-Checked the BIOS, Onboard audio is enabled.
-Bought a sound card, installed the latest drivers
I'm on the verge of reinstalling the OS.
I'm 95% sure that it's the OS and not the motherboard. Like I said, I already bought a sound card and tried it, but it didn't work.