Credit to the following:

For the kext from Leo
http://www.insanelymac.com/forum/index.php...c=99815&hl=

For the Guide/how to port AppleHDA to SL.
http://www.infinitemac.com/f57/guide-how-t...da-to-sl-t3981/

How to setup 5.1 surround sound
http://www.insanelymac.com/forum/lofiversi...php/t87336.html

Kext can be found here.
http://www.insanelymac.com/forum/ind...owtopic=211676

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Motherboard: Asus P5E-VM DO AMT configured (can be powered on/off remotely) Processor: Intel Quad Core Q6600 @ 2.4GHz GO stepping. Memory: 4GB OCZ - OCZ2P10004GK 1000 MHz; Graphics/Video: Dual Head XFX NVIDIA 7900 GTX 512mb flashed to QUADRO FX 5500(Thanks to Aquamac); Display: Dual Dell 2007WFP & New Dell 2707WFP Main Monitor; Harddrive: (1.) 500GB WDC5000AAKS - (2.)500 GB Seagate ST3500630AS SATA; Optical Drive: DVD DHQ6A1L : Network: Built-in Intel 82566MM running on 32/64.