This package for use HD6450 model on 10.8.5



INSTALLATION:

1) Open Kext Wizard (or similar)

2) Unpack package.zip

3) Install ALL kext in package by using previus app

4) Repair cache and permission by using previus app

5) Reboot

-) Enjoy a full working with QE/CI 6450 card ;)



p.s. You may have GE=Yes with PciROOTuid=0 and Bulrushes framework in boot.plist



source