We have a Dell PowerEdge gen 12 server that is capable of a total 384 GB of RAM and has 12 RAM slots total. Currently, we have a total of 32 GB of RAM occupying 4 slots at 8 GB each.
I would like to upgrade this server at some point in the future using higher density RAM of the same specifications as RAM prices go down, making maximum use of the slots available. But I would like to of course continue to be able to use the existing ones.
My question is, can I mix RAM density types if all other specs and brand are exactly the same? My guess is yes, but just wanted to double check. Also, I am guessing that they will need to be paired in some sort of slot staggered order?