There is an issue with AMD 6xxx cards in Mountain Lion. Special Instructions for AMD 6xxx Graphics Cards: Sometimes a cure-all to reach the installer. Verbose Mode- allowing you to see the loading of the OS instead of the Apple Boot Screen. This can solve many issues, allowing you to access the installer screen. You can install without graphics card injection. Set it manually to 0 by typing this command at the boot screen above. UniBeast has PCIRootUID=1 set by default for the most universal support for recommended builds. This setting may be necessary on motherboards using Fermi and Kepler NVIDIA cards for installation. Reboot and try another port or one of the following flags. The DVI or the HDMI port are usually the most compatible for installation. It's your graphics or possibly your choice of graphics port. We've provided a few tips below.īlack Screen, White Screen, Flickering Screen You will have to troubleshoot this part yourself according to your own hardware specs. Here are a list of things you can try in order to troubleshoot booting to the installer. You can hit arrow-down as well on the boot screen to access boot options. You may have to type extra boot arguments in the system at the boot screen you see above. For maximum compatibility, we recommend using integrated graphics (HD 3000/4000) for the installation, then adding your discrete graphics card after a successful installation. Optional Boot Arguments & Troubleshooting Tipsįor some hardware, it may be more difficult to get to the installation screen. At the Chimera Boot Screen, choose USB and hit Enter Building a CustoMac Hackintosh: Buyer's GuideĤ.

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