Z77MX-D3H VIA audio driver not working Windows 8.1

[fraggo]

Purchased a  Z77MX-D3H, Since I am using windows 8.1 I updated bios to f17b because it said it fixes audio issue in 8.1. I  downloaded the audio driver for this bios  ( v11_0300a_Win8_Win7) . The driver installs without errors but the audio device is still the default "high definition audio device" with error "the device cannot start". I tried to install driver manually too through device manager but it doesn't see the driver.  Please help me get audio   

[fraggo]

well i got it all going but very disappointed with all the background hissing and crackling in the audio. its typical interference noise from poorly shielded audio codec. reminds me of motherboards from 10 years ago.