Hello, I have an asrock z77 extreme4 mobo. This is the RAM I have: https://www.newegg.com/Product/Product.aspx?Item=N82E16820233186 I changed the XMP profile under "OC tweaker" to XMP 1.3 and DRAM freqency to 1600. This should have set my speed to 800 MHZ in CPUz, but it's showing 899.9 mhz. Is this ok? or do i need to change something? I want to make sure i'm not gonna burn out my ram or worse, cause a fire.