Dell PowerEdge C6520 — supported memory

Cloud/HPC node for the C6400 2U chassis (up to 4 nodes). Up to 16 DIMMs per node in a 2-socket config: 8 DDR4 channels per CPU, 1 DIMM per channel (3rd Gen Intel Xeon Scalable). Supports 16/32/64 GB RDIMMs and 128 GB LRDIMMs (3DS); no UDIMM, no persistent memory. Up to 2 TB total (16 x 128 GB LRDIMM), max 128 GB per DIMM. Validated DIMMs are 3200 MT/s rated; speed CPU-dependent per the technical guide processor table: 2666 MT/s (Silver 43xx), 2933 MT/s (Gold 53xx), 3200 MT/s (Gold 63xx / select SKUs).

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 →