By slot 0 i mean the first slot, some mobos mark the slot as 0 and since you haven’t told us which mobo you are using i really cannot tell if it’s marked as 0 or 1 . :slight_smile:

Yes the slots are marked on all mobos. Look closely around the slots the markings should be there somewhere, it should be something like DIMM1 and DIMM2 or something like that, if you still can’t find them check your mobo manual .

Another option is to download THIS program go under SPD and you can see in there which ram is where.

Third option is to tell us which mobo you use so we can look up the manual and we can guide you from the manual then.