how can i disable S/PDIF output and enable speakers on windows 7 ultimate?

[Elvin-Jacob]

I don't have an audio output for my Desktop... I had plugged in my creative speakers in the green 3.5 mm audio jack, I also tried my headsets too on this jack but no output. I noticed that there are no speakers in sound options in control panel, only S/PDIF output. even afer i tick on the show disabled devices there is no speaker listed for me to enable. Please help...
My PC specs are:-

Windows 7 ultimate 32 bit
Pentium(R) Dual-core CPU E5400 @ 2.70 GHz 2.70 GHz
2 GB RAM
Intel(R) G41 Express chipset

 

[Darkbreeze]

What is the model number of your motherboard? It should be printed on the motherboard itself.