Hayleywow Posted October 28, 2012 Share Posted October 28, 2012 Hi guys sorry if I'm posting this in the wrong place. I'm trying to install OS X Mountain Lion my specs are Asus Rampage IV Extreme intel i7 3930k (No overclock) Asus GeForce GTX 580 Asus Xonar D2 soundcard i have a bootable USB with mountain lion and when select lion from the boot menu, I just get a white screen with the apple logo, and that's where it stays. i have run the flag - DSDT=null npci=0x2000 -v (which a friend suggested) I got a few kexk com.apple.driver.AppleHDAController failed to load then right at the bottom I get "Still waiting for root device" Also tried using the "PCIRootUID=0" Flag aswell... Sorry if this is a noob error, hope you guys can help Thanks Hay Quote Link to comment https://www.insanelymac.com/forum/topic/283963-help-apple-logo-freezes-b4-installer/ Share on other sites More sharing options...
artur_pt Posted October 29, 2012 Share Posted October 29, 2012 hello i think is nvidia giving problems first try to boot -v GraphicsEnabler=No insert other necessary flags if it stop... try to boot without the nvidia, using only the intel hd 4000 or remove the nv*.kext from system/library/extensions good hack Quote Link to comment https://www.insanelymac.com/forum/topic/283963-help-apple-logo-freezes-b4-installer/#findComment-1863707 Share on other sites More sharing options...
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