Optimal RAM Configuration for Dell PowerEdge with Xeon 32 Core (2.2GHz, 11.2GT/s UPI)

Hello Dell Community,

I am configuring a Dell PowerEdge server (model T6xx/R7xx series) equipped with an Intel Xeon processor (32 Cores, 2.2GHz base, 11.2GT/s UPI) and am seeking advice on memory configuration to maximize performance for demanding virtualized and data-processing workloads.

My goal is to ensure the memory subsystem does not become a bottleneck for the high core count and the fast UPI interconnect. I have a few specific questions:

1. Channel Population: With this CPU architecture, what is the recommended DIMM population strategy per channel (1DPC or 2DPC) to achieve the best balance between bandwidth and latency? I want to ensure we are fully leveraging the multi-channel memory controller.

2. Speed vs. Capacity: For a total target of 256GB RAM, would I see better overall system performance using higher-capacity DIMMs (e.g., 32GB) at a slightly lower speed, or lower-capacity DIMMs (e.g., 16GB) that can run at the system's maximum supported speed? The workloads are a mix of large in-memory databases and CPU-intensive compute tasks.

3. UDIMM vs. RDIMM: Given the potential for high memory bandwidth demands from the 32 cores, are there any specific considerations or recommendations between using Registered (RDIMM) vs. Unbuffered (UDIMM) memory in this context, particularly concerning signal integrity and stability at higher frequencies?

4. Dell-Specific Tools: Are there any specific BIOS settings or Dell OpenManage features that are particularly important to tune for this specific Xeon CPU and memory combination to ensure optimal performance?

I want to make sure the hardware is perfectly balanced before deployment. Any insights from users with similar configurations or from Dell engineers would be greatly appreciated.

Thank you in advance for your help.