Brand new rig with approved Hackintosh spec still can't install iAtkos L2 #iATKOS

I've recently purchased components to build a new PC with the intention of creating a Hackintosh dual boot (or at least have Hackintosh on one drive)







As recommended I have got the following spec:







Gigabyte Z77 DS3H Motherboard v1.1



Intel i5 3570K CPU



8GB RAM (increasing to 16GB tomorrow)



nVidia GT640 graphics card.



Samsung 830 256GB SSD



1TB SATA drive



2TB SATA drive







I've tried on my laptop in the past and also on VirtualBox and been successful in installing both Snow Leopard (Retail) and iAtkos L2 disk. Although I never got beyond initial desktop, I was able to connect to the internet etc.







However when I install on my new machine, i just get the grey screen with the apple. no animation. Nothing.







I can't even use the Snow Leopard disk with MacOS tools disk.







(I also can't seem to even put the boot disks in my machine, as they both destroyed my Win7 boot, despite me not even installing anything)







Am I doing something wrong?







Thank you for any help! I'll be most grateful! :)