Hello friends, I am having Gigabyte GA-Z68X-UD3H B3 motherboard and getting problem with it, whenever I am trying to install memory on it then it is not booting. It is happening when I am tried to do it in 3rd and 4th slot of motherboard. If I try to do it then computer turns off automatically. But when put same memory in 1st and 2nd slot then it is been working very much nice and it is booting properly as it should be and at that time I am also able to load windows also. I really not know what is the problem with it and I think that I have tired tow different types of memory on to board, such that I am using a 4 GB Corsair 1600 MHz and 8GB Corsair XMS3 1333 MHz, but one thing which I believe that if these memory are working fine at 1st and 2nd slot then it should work for 3rd and 4th slot also. So can you people please tell me that what is the problem and what I should do to make it work? Thank you.