I need a system disk for an asus a3ac

Go to asus website to download the official drivers.

http://www.asus.com/product.aspx?P_ID=aPg3fYgefhTdhPHz&content=download

Try going to your motherboard's website to see if there is a newer soundcard driver. go to theSoundmax site and found that they do not have drivers there. They referyou to the different manufacturers for their customized drivers.

Make in your Audio Control Panel that your sound cardis the default device for mic recording. Are there any other symptomsor any more information you can give us that might be related to thisproblem. Is it only when returning from Hibernation or Standbye