connecting 5.1 sound system to pc

[baha2]

hello
i have this 5.1 surround sound system sven HA-435T , but i am struggling on how to enable all the speakers at once since i took it from a friend and it only has 1 aux cable ( 2 aux heads for the sub-woofer and on the other end one 3.5mm jack )
any help is welcome and i have no clue about surround systems its literally my 1st time

mobo https://www.asus.com/Motherboards/H170M-PLUS/specifications/
pic for the back of the sub-woofer https://imgur.com/a/fXrTNWa

 

[hang-the-9]

See the *2 that is next to the audio features in the link you provided.

You will probably need to buy a sound card with an optical output, and note that there are some restrictions with when you will get true 5.1 output.

 

[madmatt30]

Your board has a sp/dif header.

You can buy backplate adapters for these , what's available to you will depend on your location ?

 

[baha2]

See the *2 that is next to the audio features in the link you provided.

You will probably need to buy a sound card with an optical output, and note that there are some restrictions with when you will get true 5.1 output.

what kind of restrictions for "true" 5.1 ?

 

[baha2]

Your board has a sp/dif header.

You can buy backplate adapters for these , what's available to you will depend on your location ?

what is backplate? is it the same as sound card?

 

[hang-the-9]

See the *2 that is next to the audio features in the link you provided.

You will probably need to buy a sound card with an optical output, and note that there are some restrictions with when you will get true 5.1 output.

what kind of restrictions for "true" 5.1 ?

Depends on how the audio was encoded, the sound card specs or help files should help you.

 

[madmatt30]

A backplate (rear I/o) should be cheaper than a soundcard because it's simply a cable converter.

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F192126833756