Question Asus Strix F-Gaming How to setup Optical Audio???

[nitinvaid20]

I am using Soundblaster Zxr and i can play audio with my logitech z906 optical out with DTS as an encoder
but i thought i wanted to test the onboard sound with optical out and i have setup but getting no audio no matter what.... is there something special have to do onboard audio?

 

[alexoiu]

See if the onboard audio is enabled in BIOS and Digital audio (S/PDIF) set as the default playback device.

 

[nitinvaid20]

It is enabled and yes digital output is set to default.