I installed the XFX HD6850 graphic card on my motherboard GA-G31M-ES2L and sound no longer works. Already reinstalled the drives and sound does not work. I saw this on AMD's website:
"Disable the ATI ™ HDMI audio device in the motherboard's BIOS.
-If an IRQ conflict exists, try disabling the ATI HDMI audio to resolve the issue
-Refer to the motherboard's manual or contact the manufacturer or system integrator for proper Instructions on disabling an audio device Within The BIOS "
But I do not know how to proceed.