I have windows 7 Premium and I have been using my onboard sound (realtek) which came with my Motherboard (ROG Maximus IV).
I then purchased the Asus HDAV 1.3 Deluxe soundcard and installed in my PCI-E slot. The soundcard was not recognised by my pc at all. When I tried to install my driver
, it stated that the card wasn't plugged in. I tried every PCI-E slot and eventually took it out and returned it. The shop I bought it from did prove that the card worked fine.
I then purchased the Auzentech X-Fi Home Theater card. Installed that in my PCI-E slot and again it is not recognised. When I try to install the drivers
it just tells me that the card isn't installed. Windows has assigned generic driver but states it is not plugged in.
I have since given up (But kept the card) and have gone back to using onboard.