Hey Jayspec2012, you said "actually I never had problems with sleep, it worked from the first day without problems"
But for me sleep is not working at all. How did you get sleep working using this motherboard? Did you use a SleepEnabler.kext? I tried a few sleepEnabler but as I expected none of them worked.
All and all I love this motherboard though and sleep is the last thing I'm concerned with, everything's working perfectly here so I can't complain. I love the quality of Asus motherboard so I didn't want to use a Gigabyte board because the ones that are in the same price range look too generic for my taste and had negative feedback on newegg.com.