Cisco UCS C240 M7 — supported memory

2U rack server. Up to 2x Intel Xeon Scalable processors (4th Gen 'Sapphire Rapids' up to 60 cores, or 5th Gen 'Emerald Rapids' up to 64 cores). 32 DDR5 DIMM slots total (16 per CPU), 8 memory channels per CPU, up to 2 DIMMs per channel (2DPC). RDIMM only (registered DDR5 with on-die ECC), 1.1V, DRAM densities 16Gb/24Gb/32Gb. Memory clock speed: 4th Gen CPU up to 4800 MT/s (1DPC) / 4400 MT/s (2DPC); 5th Gen CPU up to 5600 MT/s (1DPC) / 4400 MT/s (2DPC). Max per DIMM 256GB. Max system memory 8TB (32x 256GB). Cisco also lists a DDR5-6400 256GB RDIMM PID (UCS-MR256G4RG53, avail Q3'CY26) that operates at the CPU memory controller max (up to 5600 MT/s). Source: Cisco UCS C240 M7 SFF Rack Server Spec Sheet.

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 →