So this is my issue.
I brought a Asus B350 Prime plus motherboard back in may and also this RAM from Corsair CORSAIR DESKTOP RAM VENGEANCE LPX SERIES - 16GB (16GBx1) CMK16GX4M1B3000C15. It is a dual rank one and i think the t which they refer in lot of Youtube videos is 2T or something. Problem...