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Thank you for the quick reply. Yes, I did the installation of Mavericks on the Lion (excluding ML), but I tried to remove the "old" kexts. I attach screenshots of the extension (just loaded) and info about Mac and graphics But it may be a better alternative. Mavericks do not need to work...

I am already upgrade from 10.7.5 (system definition iMac 12,2, fully functional - sleep, wake, etc - no problem) to Mavericks (unfortunately I don't have downloaded ML from Apple Store) on an F12 Z68X-UD3H-B3, i5-2500K, HD 6850, WD SATA 1TB, apple USB keyboard and USB mouse. I prepare USB with...