Hi, I managed to install High Sierra on ssd (apfs), motherboard ga-ep35-ds3 with core2quad q9560, 6gb ram, gtx 970. pity that with the ssd I made a disaster ..... through app on os x I recovered everything and saved on folder. The big Testdisk sees everything but does not restore partition apfs..sigh sigh .. I follow your guide (os x ... sierra, high sierra 775), load base bios, I modify only SATA AHCI Mode - AHCI and save. Start from usb and then .... it panics. I only replaced the gtx970 with its gt8600. error occurs however, I do not modify boot clover only present -v (verbose mode) .The heat makes me bang my head in the wall ahahahah