Hi Akther Yes, spot on! According to your current memory population, I would suspect it is running on Optimizer Mode. Therefore, you should populate:- A1  B1 A4  B4 A2  B2 A5  B5 You may refer to the R710 user guide on the memory configuration on page 132 support.us.dell.com/.../HOM.pdf Let us know how it goes.
Hi We have Dell R710 server and 24 GB already there. We need to add 8 more GB. When i check the part number from Dell ope manage console i could see this M393B5170EH1-CH9 . But reseller has the stock of 9J5WF this part number RAM and he saying it will be fit in to the server My question is this part number will be suitable ? or i need to buy exactly the part number RAM which i can see in Dell open manage console? Appreciate help. Thanks Akther  
Memory upgradation on R710