Install Mountain Lion

Conf.: Asus P8Z68V LX + Intel Core i5 2500K + RAM Patriot PC3-12800 1600MHz 8GB (2x4GB) + nVidia GT240 512MB GDDR5

1. Install patched ASUS BIOS v4003 so as to allow for Sleep to work
2. Create a bootable USB flash drive with Mountain Lion like explained here: UniBeast: Install OS X Mountain Lion on Any Supported Intel-based PC
3. Boot on USB flash drive: <TAB>, then PCIRootUID=0
4. Format disk as Mac OS Extended (journaled), options: GUID Partition Table
5. Install ML
6. Upgrade to 10.8.2
7. Download tonymacx86 MultiBeast 5.1.3
8. Check options as shown:
   
9. Reboot, no option
10. Et voila: a fully working hackintosh with sleep capability on and no DSDT
    
11. Keyboard: In order to map my Dell keyboard w/ GB layout, used the wonderful Ukelele w/ Logitech GB layout