General

Engineer's Note

Designed for server environments, this 32GB DDR4-2933 Registered DIMM leverages ECC and a single-rank x4 configuration to deliver exceptional data integrity and reduced electrical loading, making it ideal for dense virtualization and memory-intensive database workloads. The registered signal type and CL21 latency provide robust buffering and signal stability, ensuring reliable performance in multi-DIMM platforms where consistency is critical.

Technical Specs & Insights

1. 32GB capacity per module provides ample headroom for dense virtualization, allowing more VMs per server without immediate DIMM slot expansion.
2. 2933MHz speed elevates memory bandwidth for in-memory analytics and transactional databases, translating directly into faster query throughput under heavy concurrent loads.
3. ECC protection silently corrects single-bit errors and detects multi-bit faults, preserving data integrity in financial transactions and long-running computational workloads where silent corruption is unacceptable.
4. Registered signal buffering stabilizes the memory bus under high-capacity configurations, enabling fully populated server boards to run 24/7 without signal degradation.
5. Single Rank x4 organization balances low bus loading with sufficient bank interleaving, sustaining predictable performance in virtualization clusters during peak consolidation cycles.

Why These Specs Matter

The Samsung M393A4G40AB3-CVFBY is a 32GB DDR4-2933 Registered RDIMM built exclusively for server platforms, and its four architectural strengths directly tackle the non-negotiables of enterprise computing. ECC memory silently corrects single-bit errors, a critical safeguard for always-on virtualized clusters and transactional databases where an unnoticed bit flip can corrupt financial records or halt services. The Registered clock driver buffers command and address signals, stabilizing data paths even when all channels are fully populated—this lets you scale beyond terabytes of RAM for dense VM farms without signal degradation or unexpected crashes. Its Single Rank x4 organization employs x4 DRAM components to deliver lower command latency and superior bandwidth efficiency; for in-memory databases like SAP HANA or Redis, this means microsecond-sensitive queries finish faster under heavy concurrency. Finally, the 32GB density at 2933 MT/s balances capacity and speed, reducing the total DIMM count required for large footprints, which lowers operational power and cost per gigabyte. This translates into predictable performance, uncompromised uptime, and confident consolidation of mission-critical workloads onto fewer servers.

Endurance & Reliability

General Virtualization
Place one 32GB Registered DIMM per memory channel. For a typical dual-socket server with six channels per CPU, using six modules per processor yields 192GB total, providing ample headroom for virtual machines while maintaining full 2933MHz speed. Identical modules across channels ensure uniform latency and predictable performance.

In-Memory Database
Fill every memory channel with a single 32GB RDIMM to maximize capacity without sacrificing clock speed. On a dual-socket platform this gives 384GB of fault-tolerant ECC memory, ideal for Redis or SAP HANA. The single-rank x4 organisation keeps latencies low and consistent under heavy in-memory loads.

High-Performance Computing
For bandwidth-sensitive HPC, equip each channel with only one module to avoid speed drops below 2933MHz. An eight-channel system with eight 32GB RDIMMs supplies 256GB at peak bandwidth. Use identical single-rank modules in all populated slots to maintain symmetric memory access across NUMA nodes.

Verified Compatibility

Rigorously tested, compatibility-tested with Dell PowerEdge R740, HPE DL380 Gen10, Lenovo SR650, Cisco UCS C220 M5.

FAQ