LOL do not worry my friend. I am sure we would all struggle to speak or write a post in your home language. You from Malaysia right?
Lets be upfront here, that motherboard is simply one of the best pieces of kit you will ever get to play with. It is the the F1 of motherboards. Now just like a F1 car, it needs lots of understanding to make it fly.
It is a good thing that you have done in accepting that you need help, that is the first step. The next step is to read as many of the very good guides that are sticky in the Rampage sub-forum. Take your time and work through them. Raja has explained each and every BIOS option. And there are other guides that will allow you to overclock your system in different ways.
Myself I do not like the pre-sets that are found on the EZ mode. They are a bit to clunky for me.
Here is what we are going to do, you are going to read those guides, and then when you are done you will clear CMOS again and start from scratch. This time you use the AI tuner and explore with confidence the full power of this awesome motherboard. The whole ROG forum will be here to help or answer any questions that might crop up. I doubt that there will be many as the guides are very good.
But there is one tip I will give you. And that is with the set up you have, you really need to keep a sharp eye on your systems temperatures. especially when you are over clocking.
A really good overclock for that board and easily achievable is 4.4GHz. Simple select the XMP profile for your ram and then change the multiplier for all cores to 44. You can leave the voltages alone for now and your system should be stable. But read the guides and get to know your system. You are certainly not arrogant, if you were you would not have asked for help.
Regards and welcome to the forum.
To help us help you - please provide as much information about your system and the problem as possible.