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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 64 GB |
| Memory Technology | DDR5 |
| RAM Speed | 6400 MHz |
| RAM Standard | DDR5-6400/PC5-51200 |
| Error Identifying | ECC |
| Signal Type | Registered |
| Column Access Strobe (CAS) | CL52 |
| Rank | Dual Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 64GB DDR5-6400 Registered ECC RDIMM is built for enterprise server platforms, and it excels in virtualization clusters, in-memory databases, and high-performance computing workloads that demand uncompromising data integrity. Its dual-rank x4 organization amplifies bandwidth through rank interleaving, while the Registered signal type and ECC deliver exceptional signal stability and single-bit error correction in dense multi-DIMM configurations.
1. A dense 64GB capacity per module allows dual-socket servers to host significantly more virtual machines per node, directly boosting consolidation ratios without compromising memory bandwidth.
2. DDR5 technology doubles the prefetch length and improves power efficiency, giving modern data centers the throughput headroom needed for real-time analytics and large-scale in-memory databases.
3. The 6400 MT/s transfer rate shrinks data access gaps under heavily threaded workloads, ensuring consistently low tail latency for sensitive financial transactions and AI inference pipelines.
4. On-die ECC corrects single-bit errors transparently, preserving data integrity in mission-critical systems where even minor corruption could trigger costly downtime or compliance failures.
5. Registered clock and command architecture maintains signal integrity across fully populated memory channels, enabling massive memory footprints essential for enterprise virtualization and large-scale container orchestration.
Based on its RDIMM specification, registered design, and 288-pin form factor, the M321R8GA0EB2-CCP is unequivocally a server-class memory module. For the data center, its four standout features translate directly into operational resilience and performance where it matters most.
In a dense virtualization cluster hosting dozens of virtual machines, the 64GB capacity and Dual Rank x4 organization become critical. Each rank allows the memory controller to interleave accesses, substantially boosting effective bandwidth. When multiple VMs contend for resources, this means your hypervisor avoids memory bottlenecks that cause stuttering in time-sensitive services. Meanwhile, the registered (buffered) signal type stabilizes the electrical load across the server’s numerous DIMM slots, ensuring you can populate all channels at full 6400MT/s speed without signal degradation or boot failures, a common pain point in fully-loaded systems.
For an in-memory database like SAP HANA or Redis, the integrated ECC is non-negotiable. A single cosmic-ray-induced bit flip in financial or patient data can cause silent corruption, corrupting analytics or even crashing trading algorithms. ECC silently detects and corrects these errors, safeguarding data integrity. Paired with the module’s PC5-51200 bandwidth, it enables real-time fraud detection to scan massive datasets with deterministic latency, turning raw speed into genuine business trust and zero-downtime reliability.
General Virtualization
For a DDR5-6400 registered ECC module, populate servers with balanced DIMMs per channel to maximize bandwidth. Use 64 GB RDIMMs in sets of 8 or 16 across multiple memory channels, providing 512 GB to 1 TB per host—suited for moderate VM density. Dual-rank x4 modules ensure consistent latency under mixed workloads.
In-Memory Database
Low-latency, high-capacity requirements make this 64 GB RDIMM ideal. Deploy six to twelve modules per socket to keep entire datasets in DRAM, exploiting the high 6400 MT/s speed and CL52 CAS. ECC and registered signaling maintain data integrity during cache-heavy operations.
High-Performance Computing
For bandwidth-sensitive HPC jobs, fill all memory channels with identical dual-rank 64 GB DIMMs. A typical dual-socket node can house 16 or 24 modules, delivering 1 TB to 1.5 TB of capacity. Registered ECC ensures reliability across long-running simulations, while the high clock matches CPU fabric speeds for efficient vectorization.
Server memory rigorously tested for Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R8GA0EB2-CCP with other memory modules of different brands or speeds?
A: We strongly advise against mixing different brands or speeds. Mixing can lead to instability, POST failures, or degraded performance in servers. For optimal reliability, use identical modules across all channels.
Q: Is this memory compatible with my Intel or AMD server platform?
A: This DDR5-6400 ECC Registered DIMM is compatible with server platforms supporting DDR5 RDIMMs, such as 4th Gen Intel Xeon Scalable or AMD EPYC 9004 Series. Please check your system's QVL for confirmation.
Q: What is the recommended DIMM population order for optimal performance?
A: Typically, populate one DIMM per channel starting with the primary slot set indicated in your server’s memory population guide. Maintain balanced, identical DIMM configurations across all populated channels for optimal performance.
Q: Does this module support overclocking or XMP profiles?
A: No, this server-grade RDIMM does not support overclocking or XMP. It runs at JEDEC standard DDR5-6400 with CL52 timings, prioritizing data integrity and stability over speed in enterprise environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a 1-year warranty. Enterprise-class DDR5 RDIMMs typically demonstrate an annualized failure rate (AFR) well below 0.5%, ensuring robust reliability for 24/7 operation.