Helloooo. I just can't get this thing to boot so I can install el capitan. Tried about every combination of commands (npci=0x2000, graphicsenabler=yes/no, pcirootuid=0, usekernelcache=no, nv_disable=1, -v)and they all end up at "still waiting for root device". Using -x gets me to another page where it says "error allocating 0x4767 pages.. and "error loading kernel cache". tried using the asusx79 zip's r4e kexts, config.plist, ssdt's and usb2fix zip too. Also tried different usb2 and usb3 sticks. No change. I know this is mainly a thread about the Extreme motherboard, but i'm sure someone must've tried this guide with a Formula...