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Hey guys - recently got round to installing OS X on my PC and it went pretty well - minus one rather large hiccup.

 

See, the problem is that I can boot using Intel 4600, but when trying to boot from my 7950, I get a lovely error message full of garbled text before the chrimera bootloader. I've attached a picture of this.

 

I've heard that modifying the BIOS settings to primarily use the integrated GPU fixes this, as OS X still uses the 7950. In my case however, this causes OS X to use the iGPU instead on the dGPU.

 

what's even more weird, if I use the USB install drive to boot into OS X, it works even using the 7950.

 

Any ideas would be greatly appreciated.

post-1275789-0-02537500-1387734323_thumb.jpg

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