If you have one processor you only have one more slot available, so adding another 8GB of memory would be the limit.
Hello everyone! I have a T410 Dell Server and would like to upgrade my RAM Memory. I currently have 24GB RAM as follows: 3 Modules of 8GB RAM  Dell Certified - 2Rx4 RDIMM 1333MHz LV   I would like to keep these modules and add extra. Don't know if I can add 8GB, 16Gb or 24GB more. Hope you can help me out. Thanks in advance! 
Memory Upgrade for Dell Server T410