Hello!
My hardware:
Gigabyte GA-H55N-USB3, Intel Core i3 530, Kingston HiperX 2048mb x1, HIS Radeon HD 5770 IceQ 1024mb, 1tb WD Scorpio Blue 2.5"
iBoot not worked :(
Over "Extentions.kext":
Errors encountered while starting up the computer.
Pausing 5 seconds...
And reboot..
Bios f5