I would start with swapping those 2 dimms with other matching dimms from within the server. This will let us see if the issue follows the dimms, which if one of the dimms isn't working correctly then you could see this error.
If needed here is the documentation for the R710. Also, if you want to private message me the svc tag I can get a better idea of the configuration.
Let me know what you see.
Chris Hawk Dell EMC, Enterprise Engineer Get support on Twitter @DellCaresPRO