General

Engineer's Note

Designed for server-class platforms, this 32GB DDR4-3200 RDIMM with ECC and a Dual Rank x8 configuration delivers the data integrity and signal stability essential for virtualization, in-memory databases, and other latency-sensitive enterprise workloads. Its Registered architecture and CL22 timings ensure reliable operation under heavy load, maximizing throughput and uptime in multi-DIMM configurations.

Technical Specs & Insights

1. A 32GB capacity per DIMM allows dense memory configurations in 2U and rack servers, hosting more memory-intensive virtual machines per physical node and improving consolidation ratios without resorting to expensive, higher-capacity modules.
2. DDR4-3200 throughput provides the high memory bandwidth required for in-memory databases and real-time analytics, cutting query response times and accelerating data-driven decision loops under heavy concurrent access.
3. ECC protection corrects single-bit and detects multi-bit errors autonomously, preserving long-running computation integrity in financial modeling and scientific simulations where silent data corruption is unacceptable.
4. Registered signal buffering stabilizes the command and address buses at high load, letting the server support fully populated 24-DIMM banks without sacrificing operational reliability during peak transactional bursts.
5. Dual Rank x8 organization interleaves internal pages across rank boundaries, sustaining near-peak channel utilization and delivering consistent memory latency even when multiple VMs contend for shared resources.

Why These Specs Matter

The M393A4G43AB3-CWEBY is a DDR4-3200 Registered DIMM built for the server room, not the desktop, and its four defining characteristics directly answer the real-world pressures you face in mission-critical infrastructure. The 32 GB capacity built on a Dual Rank x8 design lets you populate fewer slots to reach high memory densities, leaving room for future scaling—critical when you are running dense virtualization clusters where every slot counts. That ECC engine works silently in the background, correcting single-bit errors caused by background radiation before they ever become silent data corruption or a node crash, which means your financial transaction database or ERP system maintains absolute integrity without overnight surprises. The Registered clock driver buffers command and address signals, stabilizing the memory bus so you can pack a server with terabyte-scale memory and still boot reliably—a non-negotiable when a VMware ESXi host supports dozens of production VMs. At 3200 MT/s with a full 25.6 GB/s bandwidth per channel, this module feeds in-memory databases like SAP HANA or Redis with the throughput to keep query response times under milliseconds, turning analytics into real-time insight instead of a waiting game. In a world where downtime means revenue loss, this memory’s blend of capacity, signal integrity, error correction, and bandwidth is not just a specification—it is risk mitigation and performance insurance you can count on.

Endurance & Reliability

General Virtualization
Balanced memory population is essential for virtualization hosts. Install identical 32GB RDIMMs evenly across all memory channels of each CPU to maximize throughput and avoid NUMA penalties. A common sweet spot is 256GB per socket (8 x 32GB), delivering ample capacity for mixed VM workloads while maintaining the full 3200MT/s speed with one DIMM per channel.

In-Memory Database
This workload demands maximum capacity and data integrity. Populate all available DIMM slots with these dual-rank 32GB modules, accepting a possible speed reduction if two DIMMs per channel are required. Configure both sockets symmetrically to ensure uniform memory access. A fully loaded dual-socket server with 24 modules provides 768GB, ideal for housing large datasets entirely in RAM.

High Performance Computing (HPC)
Prioritize memory bandwidth by using one 32GB RDIMM per channel (1DPC) to sustain the rated 3200MT/s speed. A typical 8-channel processor yields 256GB while delivering peak bandwidth for simulation and modeling codes. If capacity-bound jobs demand more memory, cautiously add a second DIMM per channel, understanding the clock-speed trade-off. Always deploy identical registered modules to guarantee stability under heavy ECC correction loads.

Verified Compatibility

Rigorously tested, compatible with Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2.

FAQ