How can I connect my Home Theatre to my PC so I can play games with the 5.1 Home...

[Rendell]

...Theatre as my Audio? So I have this LG DH6320P as my Home theatre which includes LG DVD player, 5 speakers+subwoofer.

You can see other specs in the official site of LG

Now I'm going to upload my dxdiag, system, display, and 3 audio details:


http://postimage.org/image/ycoxxai89/
http://postimage.org/image/xbtalwqmh/
http://postimage.org/image/aoe1frb2h/
http://postimage.org/image/pydwmy6kp/

here's the back of my System Unit, back of DVD player, and back of the central speaker, (the backs of central speaker and the other surround speakers are the same)


http://s8.postimage.org/l6owntnyd/IMG_0613.jpg
http://s8.postimage.org/z1n76aidh/IMG_0614.jpg
http://s8.postimage.org/6q1n98yh1/IMG_0654.jpg
http://s8.postimage.org/4zn7li6bp/IMG_0655.jpg
http://s8.postimage.org/h2sj92hdx/IMG_0656.jpg

Here's the front of the DVD player, which I believe can be connected to the PC.

http://s12.postimage.org/8zrf3c22l/IMG_0657_1.jpg

The salesman told me something to connect something to the 3rd slot (beside the USB slot) connect it from there, to the PC. But I don't know the specifics.

Monitor:

I have two monitors in my PC: AoC 21 inch and TCL 32 Inch. The VGA connects to my AOC while my TLC connects to my PC via HDMI.
Video Card: Inno GT430

 

[Sinterklaas]

It's really easy to run the sound from your computer to this surround sound system. However, you won't be getting true 5.1 audio, rather you'll be getting a 2-channel mix through all 5 speakers (the left channel will output to the left front and left surround speakers, the right channel will output to the right front and right surround speakers and both left and right channels will be mixed through your center channel).

If the 3.5mm jack in the front of your system is used for an auxiliary input, all you will need is a 3.5mm audio cable running from the green jack on the back of your computer into that jack on your sound system. Otherwise, you can get a 3.5mm to RCA Y-cable that connects to the green jack on the back of your computer and then over to the white and red RCA auxiliary jacks on the back of your sound system.

So you will need either this:

http://www.pczoneshop.com/images/2012/06/20120626100555.jpg

Or this:

http://www.9mart.com/9dollar/Budget/EG0699-1-Audio-Y-cable.jpg

If you want true 5.1 surround sound, you will need a different sound card with an optical output, such as this Creative Sound Blaster X-Fi Titanium:

http://us.store.creative.com/Creative-Sound-Blaster-XFi-Titanium-PCI/M/B001E25KDK.htm

From there, you will need an optical Toslink to Toslink cable like this one seen here:

http://ecx.images-amazon.com/images/I/41uOU7rIOaL._SL500_AA300_.jpg

This is a fiber optic cable, and it doesn't necessarily need to be a high-end cable to get good sound. You would connect one end to the "Optical In" jack on the back of your sound system and then connect the other end to the "Optical Out" jack on the sound card.