Send video and audio thru diff HDMI ports

So I just borrowed a friends GT 430 to test in my E-350 zacate build to see if I can get a better result with 3D BD ISOs.

And I'm getting great playback results.

I am wanting to send video thru the gpu hdmi to my TV and audio thru the onboard hdmi to my AVR.

This would help me get around the HDMI 1.3 versus 1.4 issue with 3D BD and HD audio.

Does anyone know if this is even possible?

I'm running Win 7 32

Any help would be greatly appreciated.

I am running TMT 5 and because my AVR is HDMI 1.3, TMT will not allow 3D playback.

Thanks all.