Help with new audio system

ok,

i just bought a pretty high end speaker system from Logitech (the z906) and im not sure if i am connecting it in the best possible way. im not very experienced with audio i usually just deal with the one green 3.5mm that spits out audio. the cable that came with the z906 however has black tan and green, so i figured that if i connect those cables to the back of my pc that everything would work ok. well nothing happens.... im not sure if it is something that i need to enable in windows or what but the only way i can get audio at all is to use the same green audio connector (on the new cable) that i used with my old system... you can hear audio come from all speakers and the sub when playing music or whatever but im not certain that it is correctly configured for 5.1 because in the audio feature in windows, the "test" does not work with all of the speakers it just picks up the front R and L speakers.my motherboard has what seems like quite a few audio options on it so i don't think i need a sound card, but im really not sure. my motherboard is an evga E758-A1. here is a link for a picture of the I/O panel on the back.

http://www.newegg.com/Product/Prod [...] 6813188039

also i was wondering what the fiber jack on there was for... any help would be appreciated.

thanks

green - front speakers
black - rear surround speakers
orange/tan - subwoofer and center

pink - microphone input
blue - preamp input
grey - middle surround speakers (for 7.1 setup)

windows audio control panel should show what speaker configuration is to be used.
you have to play a surround sound format OR the soundcard has to encode the audio into a surround sound format.
3.5mm outputs are analog and wont have a digital surround sound format going across those cables.

the 'best' way is to choose analog outputs or digital outputs and compare them both.
whichever one makes the speakers sound more detailed is the correct choice.

many video games dont use dolby digital or dts for audio.
that means you have to use the analog outputs for surround sound IF your soundcard doesnt use 'dolby digital live' or 'dts connect'


if you want more detailed help.. tell us what operating system you are using so we know what steps to post that will help you find the location where you can change the speaker configuration setup.
but
it's probably best to open up any software that goes with the soundcard.
installing the drivers only isn't enough.. you have to install a program that changes the settings on the soundcard to select analog or digital output.
other settings in the software include 'bypass s/pdif' or 'decode s/pdif'
these tell the soundcard to pass the signal directly to the external dolby digital (or dts) decoder.


at the very least..
if the soundcard is configured for surround sound, browse the internet for other people who have the same problem with the windows speaker 'test'
maybe there is a problem with your operating system that is causing the 'test' to work wrong.

it sounds like you have connected the green cord to the soundcard and the speaker system is playing the stereo signal on all four speakers.
i would suggest you learn how to turn that 'virtual surround sound' off and continue trying to get the soundcard to output surround sound.

i havent used windows 7
you'll have to wait for somebody else to navigate you to the audio control panel.

maybe the soundcard is defaulting to stereo output because there arent any drivers or software installed.
since the soundcard is integrated onto the motherboard, the drivers should be on the CD that came with the motherboard.
or
you could go to the motherboard manufacturer website to download more recently released drivers.

i tried to find instructions for windows 7 to get to the audio control properties, and i couldnt find any instructions.