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Upgraded my video card and now black screen


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#1
chill will

chill will

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Hello I install mountain lion on my Asus P5 mother board and everything was working fine using a Nvidia 8800 video card, my video card went bad, and I replaced it with a Nvidia 650ti with 2 gigs of ram,

now when I boot up mountain lion it will try to boot and just before I get to the login screen it goes black..

 

 

What do I need to do in order to get mountain lion to accept my new video card (Nvidia 650ti)?



#2
Gringo Vermelho

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Try booting with GraphicsEnabler=n (at the Chameleon boot GUI select your OS X drive with the arrow keys, then simply start typing).

 

If that doesn't work, let me know if you can boot with -x (safe mode, video drivers don't load)



#3
chill will

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Well I try both and either one would not work. I got close to the login using GraphicsEnabler=n before it locked up. -x mode same thing black screen



#4
Gringo Vermelho

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Okay try these all at once, exactly as below, note the capitalization:

 

UseKernelCache=n GraphicsEnabler=n -v -x



#5
chill will

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I try that and the same thing it will go as far last login screen, just when you type your user name and pw, and just lock up.

 

My question is how to I delete my old Nvidia 8800 kext, and install a new<Nvidia 650ti> Kexts, when I can not boot up.



#6
chill will

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Ok update I was finally able to get it to boot up, the only way I can get it to boot up is to use, -v GraphicsEnabler=No, and the system is showing Nvida 650ti 2gigs

 

Now what do I need to do to get it to boot up with out having to use -v GraphicsEnabler=No



#7
chill will

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Update everything is working fine now.







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