No matter how much I try, I've use the P5Q(asus) driver CD that came with my P5Q motherboard, It wont give me audio. I've downloaded the audio driver from the ASUS site but none work the driver install but ... no driver are found after installing the drivers, and I cant get any sound out of any of my two sound sockets.
Make sure Audio is set to AUTO or onboard or ... or whatever the setting might be ... in your setup/BIOS. If it somehow got set to PCI or some other external sound card, it would appear to not accept drivers. CAn't think of anything else, other than adding a PCI card and bypass the integrated sound ciruit.