Chimera won't boot with Gigabyte 7870 OC Edition

[lithetails]

Hi all,

When I boot my machine I obtain this screen when chimera/chameleon boots
http://www.tonymacx86.com/attachmen...17653-amd-radeon-hd-7870-support-img_1030.jpg
I'm not the only one with this problem.
The way to obtain a sucessful boot is booting from USB with Unibeast and I have white screen (sleep trick works!). Why is this?
I read I have to install Clover but I don't know how to config it for obtain the same experience as Chimera.

Please, fix this bug. I can't use my Gigabyte 7870OC Edition, I'm using HD4000 right now.

My build is:

* GA-Z77-DS3H
* i5 3570k
* Gigabyte 7870OC Edition
* 16 Gb @1600 Mhz


Thank you.

 

[Obvious Answer Man]

http://www.tonymacx86.com/318-amd-radeon-hd-7xxx-graphics-support-os-x-10-8-3.html