Hello

Slots 1-3 on both lanes would probably be the correct population. You can review the memory population rules/guidelines in the manual on the M610 support page.

http://www.dell.com/support/

Thanks

Thanks for your help, Mr. DELL-Daniel My

I try this probably Slots 1-3 on both lanes (6 slots with 16 GB) , but I find 96 GB (64 GB usable).

Hi Mr. DELL-Daniel My

Thanks for your help, the problem resolved, by modifying in the BIOS Memory Settings, Memory Operating Mode = Optimizer Mode