On 03/06/21 18:16, Toldi Balázs wrote: > Hello! > > In my current PC I have 16 GB of RAM installed. It worked fine until > today, when I upgraded my CPU from a Ryzen 5 1500X to a Ryzen 7 2700. > The system boots up just fine, but when I use the free command the total > memory is only 8 GB. When I looked into the BIOS, it showed me the > correct amount. What should I do?
What does the mobo manual say? Are your memory boards in the correct banks? It could be the MMU in the Ryzen 7 insists on banks 1 & 2 being filled before 3 & 4 while the 5 isn't so fussy. I don't know about this, not having this sort of problem before, but I do know from building my own systems that the memory boards need to be paired up correctly, however you define "correct" ... Cheers, Wol
