Gigabye ga-g31m-es2l rev2.0 (ich7), 2.33ghz intel core 2 duo, sparkle gt210 (nvidia) 1tb sata drive. My issue is with the gfx card. This card worked fine in both snow leopard and lion in all updates. I know it works in mountain lion because with the initial startup boot using the unibeast mountain lion usb it worked fine full quartz and proper resoloution, up until i ran multibeast and eastbeast. So far no command i've used works. It boots up, and right after the apple logo the screen goes black and i says no signal. But the system is still running i can hit the keyboard and hear the responses through the speakers.