General

Engineer's Note

This is a server-class DDR4-3200 Registered ECC DIMM (RDIMM) optimized for enterprise virtualization, in-memory databases, and data-integrity-critical workloads. Its dual-rank configuration maximizes memory density while preserving bandwidth, and the registered signal type with ECC ensures stable, error-corrected operation on densely populated server platforms with a low CL24 latency.

Technical Specs & Insights

1. High capacity per module allows dense memory configurations, empowering data centers to run more virtual machines per physical host and scale cloud services without adding extra server nodes.
2. Registered DIMM architecture buffers command and address signals, preserving signal integrity in fully loaded enterprise servers and ensuring non-stop stability under 24/7 operation.
3. ECC protection detects and corrects single-bit memory errors in real time, guarding transactional databases and analytics workloads from silent data corruption that could compromise business decisions.
4. Elevated transfer rate delivers the sustained memory bandwidth required for real-time big-data processing and heavy virtualization, preventing bottlenecks when multiple tenants contend for shared resources.
5. Dual Rank interleaving keeps the memory channel saturated with concurrent data requests, maintaining consistent low-latency response for containerized microservices even during peak provisioning cycles.

Why These Specs Matter

For your data center, the Samsung M393A8G40BB4-CWECQ is a 64GB DDR4-3200 Registered DIMM engineered to eliminate the pain points of modern server workloads. Its ECC technology actively corrects single-bit errors—a silent threat in 24/7 virtualization clusters where even a flipped bit in a hypervisor’s memory can crash dozens of virtual machines. The registered buffer ensures signal integrity when populating all memory channels with high-capacity modules, so you can confidently scale to terabytes without stability trade-offs. Dual-rank organization interleaves memory banks, delivering higher sustained bandwidth that in-memory databases like SAP HANA rely on for sub-millisecond response times during peak transactions. Combined with a 3200 MT/s transfer rate and a CL24 latency that keeps CPU pipelines fed, this module means fewer dropped queries in Redis clusters and smoother live migration of VMs across hosts. It’s not just memory; it’s the foundation of resilient, high-throughput infrastructure.

Endurance & Reliability

This 64GB DDR4-3200 ECC RDIMM is a server-grade module designed for registered memory platforms with error correction. It suits multi-socket and high-reliability systems where capacity and data integrity are paramount. Below are typical capacity planning guidelines for three critical server workloads.

General Virtualization
A balanced memory-to-core ratio is essential for dense VM hosting. Populate at least one identical DIMM per memory channel to enable interleaving and maximise bandwidth. For a dual-socket server with eight channels per CPU, install eight or sixteen of these 64GB modules to provide 512GB–1TB total capacity, comfortably supporting dozens of mixed-workload virtual machines without memory contention.

In-Memory Database
In-memory analytics demand low latency and massive capacity to keep entire datasets resident. Configure all available memory channels symmetrically, using two DIMMs per channel if the platform supports it, to reach multi-terabyte footprints with full channel interleaving. The dual-rank design of this 64GB RDIMM improves command/address parallelism, reducing latency spikes under heavy random access – critical for Redis, Memcached, or SAP HANA deployments.

High Performance Computing (HPC)
Memory bandwidth often determines simulation performance. Populate exactly one dual-rank DIMM per channel to achieve the highest possible data transfer rate. For an 8-channel CPU, deploying eight of these modules provides 512GB of high-bandwidth memory at the lowest latency rank configuration. This approach saturates the processor’s memory bus, accelerating CFD, weather modelling, and molecular dynamics codes that stream large vectors from DRAM.

Verified Compatibility

Server-validated for Dell PowerEdge R750, HPE ProLiant DL380 Gen10 Plus, Lenovo ThinkSystem SR650 V2. Rigorously tested.

FAQ