7.1 Surround setup?

Im using a Gigabyte z77x-ud3h motherboard with onboard audio Realtek ALC898 and a GTX670. I've read manual and troubleshooted I cant seem to figure out how to ge tit working with my 7.1 surround sound I have in my basement.

http://www.google.com/imgres?um=1&hl=en&safe=off&authus...

Do you know how I could configure this, its my dads in his living room and he has all the speakers set up (7.1)

Apperently these are the specs.

http://store.sony.com/p/STR-DA5000ES/en/p/STRDA5000ES#f...