#8x8

Hi. as title says, i mounted my 2x8 GB rams 2133 mhz with same specs and same manufacturer into slots 2 and 3. The reason i mounted it in DIMM 3 instead of 4 is that when i tried it on 4, the pc is not booting up. Therefore, i tried the slot 3 and it works. My concern here is that, is my pc...