Hi,
I'm running 10.8.5 on
GA-Z68A-D3H-B3 BIOS F13
Core i5-2500T ES
GV-NX86T256H-ZL (NVidia 8600GT from GigaByte)
DSDT(from http://www.tonymacx86.com/11-dsdt-database.html)
SSDT(from MultiBeast)
OS from AppStore, with Unibeast & Multibeast 5.5.5 after installation
Everything works perfectly...