sammcj
Read this post, is easy to modify the dsdt, I know my motherboard and have access to info, that I don't have with yours.

http://tonymacx86.blogspot.com/2010/...-graphics.html

---

CPU: AMD Opteron 165 @2.0Ghz - Motherboard: ASUS A8N-SLI Premium - AppleNforceata64 by ANV - RAM: 4 GB DDR 400Mhz Audio: ALC850 (AppleAC97Audio64 by sluphide) Video: MSI nVidia GeForce 7600GS 256Mb (0x0392) QE & CI from Chameleon 2 RC4 Ethernet: SKGE64 OS: Snow Leopard 10.6.2 32bits all kexts 64 bits. Sleep working. 4 Disks Two mirrored.