Hi, I am facing problem in installation OS X 10.8 Mountain Lion.
I tried-
1. (Without Redeon HD 6670 Graphics) Installation is successful but when I restart and Boot the USB drive, then choose to boot the HD, finally I get a white screen with apple logo and revolving cursor. After that nothing happens and this white screen remain for indefinite time. I tried GraphicsEnabler=No but situation remains as it was earlier.
2. With Redeon HD 6670 Graphics, As I boot the USB drive a flicker of white screen comes but then it goes and I get no video output on my LED. I tried GraphicsEnabler=No then a White screen with mouse cursor comes but then it remains for indefinite time. Nothing appears after that.
I Also Tried to above process with 8 GB and 4 GB Ram combinations but No Luck.
Plz help me, I posted earlier but couldn't get viable solution. My system config is attached in signature.