Dell PowerEdge R650xs — supported memory

16 DDR4 DIMM slots (8 channels per CPU, up to two 3rd Gen Intel Xeon Scalable, up to 32 cores). RDIMM only (registered ECC DDR4 only, no LRDIMM). Up to 1 TB (1024 GB) total, max 64 GB per DIMM. All Dell-validated DIMMs are 3200 MT/s rated (8/16/32/64 GB); operating speed is CPU-dependent per the technical guide processor table: 2666 MT/s (Silver 43xx), 2933 MT/s (Gold 53xx), 3200 MT/s (Gold 63xx). Reduced config vs parent R650 (which has 32 slots + LRDIMM/PMem).

Confirmed = listed in the vendor's memory documentation for this server. Vendor match = the vendor's own part cross-reference matches the module and its speed is validated for the platform; not taken from this server's memory list. Spec match = meets this platform's JEDEC requirements (generation, form factor, validated speed); interchangeability is spec-based, not per-server testing. How we verify →