Per the information update for the 2950 (available from here<ADMIN NOTE: Broken link has been removed from this post by Dell>), with the 2950 III (and possibly a bios update), you can run 8GB DIMMs.   If you need more than 64GB of memory, you'll have to upgrade to a newer/bigger server.
Hi My Respected customer need to upgrade memory in each slot 16 GB in Dell PE-2950 Server, My question is: Is it possible to go for this solution? Waiting for your response with thanks & regards Asim
PE-2950 can support 16GB Memroy in Each slots