Hello I already had installed on my pc 2x4gigs of ram, and I brought 2x4 gigs more even tho my old ram is kingston and the new one is kleev they have the same specs 1600 mhz ddr3. When I was installing the new ram 1 at a time it went good I had 12 gigs of ram, But when i went to install the other one . After I installed it and when I start the pc it just beeps for 4-5 secs and then shutsdown. I have tried swapping the ram and the slots but , I can't add more than 12 gigs. My motherboard supports 32 gigs max ram. Help please. also the same thing happend when I was swapping the slots one time it happend with only 1 memory stick installed is something wrong with my bios ? It is from gigabyte dual bios. Sorry for bad English