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64GB per slot for virtualization and database servers.
The Samsung M393A8G40AB2-CWE is a 64GB DDR4-3200 ECC Registered DIMM built with high-density 16Gb DRAM. This refurbished module helps administrators double per-slot capacity on Intel Xeon Scalable and AMD EPYC servers for virtualization, databases, and analytics without moving to costlier LRDIMMs.
Why Memory Capacity Limits Server Workloads
Virtualization hosts, database servers, and in-memory analytics platforms usually run out of memory before they run out of CPU. Every virtual machine and cache reserves RAM, so adding memory is often the fastest way to fit more workloads on the same hardware.
ECC Registered DIMMs are designed for this job. ECC corrects single-bit errors on every access, protecting long-running workloads from silent data corruption. The register chip buffers command and address signals, reducing electrical load so servers can run more DIMMs per channel.
At 64GB per slot, a dual-socket server with 16 slots reaches 1TB, and with 32 slots, 2TB. Because it is an RDIMM rather than an LRDIMM, it offers slightly lower latency and does not require data buffers.
Double Capacity Without LRDIMMs
Using 16Gb DRAM chips, this module reaches 64GB in a standard 2Rx4 RDIMM format, giving high capacity with RDIMM latency.
Refurbished for Value
Refurbished modules provide the same Samsung specification at a lower cost, suited to expansion of existing servers and lab environments.
How to Install the Samsung 64GB Server Memory
- Shut down the server, disconnect all power cords, and wear an anti-static wrist strap.
- Open the chassis and follow the vendor’s DIMM population guide so channels are balanced across each processor.
- Align the module notch with the slot key and press evenly until both ejector latches lock.
- Power on, allow memory training to finish, and confirm capacity, speed, and ECC status in BIOS or the management controller (iDRAC, iLO, XClarity, IPMI).
