Hello, I have a problem. My laptop is Samsung NP350V5C S0FTR which has 2x4gb 1600 mhz RAM. These RAMs are stock RAMs, they were already on laptop when I bought it. But one day when pc was updating via windows insider program, it went off and closed. Pc was opening but there was no screen. I repaired the PC, but it works only with 1333 mhz RAM. It cannot work with my stock 1600 mhz RAMs anymore. What can be the problem? 1600 mhz RAMs are working at my other laptop but they are not working on Samsung. I do not understand what the problem is. How come mainboard doesnt work 1600 mhz rams anymore but works with 1333 mhz rams? Os there a chance to make it work with stock 1600s again?