About This File
Sinetek developed a 64bit kernel for most AMD cpus. Some however, won't boot with it so he developed this one. The Athlon, Athlon II and Athlon64 fall into this catagory.
All this can be found on InsanelyMac.com in the Development section. Cool Stuff, Maynard!.
I forgot the boot args: -v npci=0x2000 arch=x86_64 busratio=15
bus ratio should be equal to half the cpu speed (minus some zeros) example: My cpu speed is 3000 / 2 == 1500 so 15 is the busratio.