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[Success ] Asrock Z97 Extreme 4 i7 4790k GTX 970
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 After so many attempts i manage to boot on Yosemite 10.10.01! First Vt turned off on Bios, I boot the installer only with /haswell and -v , choose chameleon boot loader and backup all graphics kexts on graphics options  (intel amd and nvidia), sometimes during installation the timer stays stuck on 12m or 15m but it´s working if you press your mouse on the menu bars it refresh the timer again. The other attempts I never past from [iobluetoothhcicontroller start completed], if nvidia kexts are not on backup folder you can use this method i found on reddit  :


-Booting into single user mode (-s)

-"mount -uw /" to get write access

-"mkdir ~/backup"

-"cd /System/Library/Extensions"

-"mv NVD*.kext ~/backup"




My specs: 


MoBo: Asrock Z97 Extreme 4 

CPU : i7 4790K

GPU : Asus Strix GTX 970 OC 

RAM : Kingston Hyper X Beast 2133mhz


Lan is working and also Sound with Al1150 kext.


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