So, i have 4 gb ram, 2 x 2 gb 1333 mhz Patriot Memory PSD32G13332, my motherboard is a asrock n68-vs3-ucc, and in the website it says it supports up to 1600mhz, when i go into my bios to set the memory clock to 667, because on default, it's on auto at 400 mhz, i get a blue screen after a while...