OK so i built a brand new PC a few weeks ago. It has Asrock Z87 PRO 3 MBO,i5 4670K CPU and 2 X 4GB 1600 Kingston HyerX Blu ram. KHX1600C9D3K2/8GX. This RAM is for enthusiasts and overclokers. At least that's what it says in the description. It's running at 1,65V defaut. And i just can't overclok it. I'm new to OC-ing RAM but this is ridiculous. First i went to motherboards BIOS and set the XMP profile. Raised the mem clock to 1800MHz and had to clear CMOS on MBO because PC wouldn't boot. And then i found a review of this RAM online saying how good it is for overcloking and that you can leave it at its default freq with lower latencies. So i lowered the latencies like it said in that review without touching the frequency. And my PC wouldn't boot again. had to clear CMOS. So what am i doing wrong here? I know it's not the memory or my MBO It's me.