I have same MoBo+Phenom 2 X4 with Snow Leo 10.6.4, works perfect but without wrist MoBo sound and PS/2 controller. Any kexts(voodoo, AppleHDA etc) i uses don't give me any result with sound and PS/2 problems so I go to shop and bay USB KB+use wrist sound card in my midi KB(novation XioSynth 25, drivers writed by manufacturer), i don't have much time to remove problems with other methods. Hazard gives me restart after "loading Darwin", I was trying to use different commands when booting but they don't gives any result. iAtkos installs perfect but after installation it won't starts, gives me some error messages and go to restart. So the last chance was this SnowLeo DVD . Installs and works perfect without KP. When install select chocolate kernel, pcj XNU won't use all 4 cores of my processor. Update to 10.6.4 is very desirable, 'cos version of DVD is 10.6.1 also use this kernel for better applications work(like iTunes, WO this U can't change pref. or ID3 tags) kernel pkg includes CPUID patch. And if you wanna use VMWare Fusion you must rename legacy_kernel to mach_kernel, if you don't this VMWare gives you KP after starting. P.S.:Sorry for me English.