Hello, my first post in this forum, hope someone can help me.

I'm trying to connect my SBLive Spdif-out (internal SPDIF Connector pins 1&2) to My onboard audio SPDIF-in.

The onboard is an Abit A7N with a nVidia soundstorm chip. According to the motherboard manual an Audio connector labeled FP-AUDIO1, pins 11&12 shold be SPDIF-in, but i get no sound. Analog sound works from soundblaster live, but i want to use digital in because that'd enable 2 more ASIO tracks for recording. (Got the SBLive set to digital out, and spdif full up in the nVidia mixer, and the cable connected in between)

Any ideas why i'm not getting any sound? Seems either the digital out is dead or the spdif in is dead..

Any help appreciated.

(also tried KXAudio drivers for the SBLive, to no avail)

Try to connect the digital output from you cd-player to the input of your onboard digital in. So you can test if your input works.
Digital audio outputs normally have small transformers integrated, so there is no ground connection between the input and output device.
So if there is a ground connection between your sound card and your onboard digital audio input (e.g. in the same computer, or the two computers have another ground connection e.g. via the ground from the powercord) you could get troubles. It may work, if you have the right pins connected. On your SB-card ether pin 1 or 2 is ground and the other is the signal output. On your onboard-input ether pin 11 or 12 is the ground and the other is the input signal. So you have to connect ground to ground and output pin to input pin.
If you are not sure about the correct pinout then it's better to use a transformer.
I think it is a ferrit-ring with about 10mm in diameter and at the primary side (you connected to the output) you need about 5 windings and on the secundary side you need about 7 windings of thin copper wire. Maybe you find a better explanation for this transformer in the web. So don't shoot me, if you kill your hardware after connecting this transformer! I'm not resposible for any harm if you do this. The digital audio output of my asus-board also does not have a transformer, but it works with my Rotel D/A-Converter (with a little bit hum coming out of the speakers cause of the ground loop coused by the non existance of a transformer)