Those are officially supported and certified/tested configurations that must work (as long as proper ram modules/brands are used ) Other mix may work but it's totally up to luck and not guaranteed
I'm planning to expand the memory on my dell Precision T5820 and i would like an help from some expert I suppose that the memory allocation on the precision must follow the rule below strictly [URL] So someone can confirm me that i cannot configure 96 GB Memory mixing 16+16+16+16+32 i must follow the rule on the upper link Thanks for the help
Memory allocation on Dell Precision T5820