Mohamed i tried your method but it broke both audio and internet for me..
And 'cause i have no internet i then couldn't download the gfx 1.0 so i don't know if it would have worked had i completed the process.
any ideas why this might happen?
1- install snow leopard 10.6 or 10.6.3
2- update to 10.6.4
3- install chamelon
4- replace boot file with my boot file
5-add this codes to boot.plist
6- put rom on extra
8-install gfx update 1.0
9- now it work
Gigabyte P55M-UD2 Motherboard. LGA1156 Chipset.
Intel i5-750 Quadcore 2.66GHz Processor
4gb G-Skill DDR3 RAM
XFX Radeon HD 5770 Graphics Card.
A Samsung IDE DVD-RW
A really old 40gb IDE Hard drive.
Unbranded 750w PSU.