Best memory configuration for 2 R710's

Shank89,

With the number of dimms you have, as well as looking at supported configurations, I would suggest loading A1-6 and B1-6 with the 8GB dimms in one server, with the remaining slots with 2GB dimms. That would use 12 8GB and 6 2GB in that server. In the next server I would load A 1,2,4,5 and B 1,2,4,5 with 8GB dimms, and then A7, A8, B7, and B8 with 2GB dimms, or if you want to use all channels you could go A1-3 and B1-3 with 8GB dimms and then the remaining slots with 2GB dimms, both would result in 72GB.

That would give server 1 108GB and server 2 with 72GB, unfortunately leaving 2 8GB dimms and 8 2GB dimms unused, or if you use all channels on server 2 it would leave 4 8GB dimms.

The problem is that the channels must match, so it is the number of specific dimms limiting us. If you were to add an additional 2 8GB dimms, totaling 24, you would be able to use all your dimms. With 8GB dimms in A1-6 and B1-6 and the remaining with 2GB dimms, both servers would be at 108GB.

Hope this helps. 

Thanks for the response, wht would be the best configuration with the 12x8 and 18x2 sticks I currently have?

Sorry I misunderstood and thought you were adding the 10 8GB and wanted to know the config with those included.

With your current memory (12 8GB and 18 2GB) you would use 6 8GB dimms in A1-3 and B1-3, and then 6 2GB dimms in A4-6 and B4-6. It would result in 6 2GB dimms being unused , with 60GB total per server.

Am I able to mix pc3 10600r 2rx8 with pc3l 8500 4rx8?

can you also mix brands?