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| Product Type | Memory Module |
|---|---|
| Memory Capacity | 32 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 | Single Rank x4 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 32GB DDR5-6400 Registered ECC module (RDIMM, single-rank x4) is ideally suited for enterprise server platforms running virtualization stacks or in-memory databases, where uncompromising data integrity and high-speed throughput are critical. The Registered signal type reduces command/address bus loading while the x4 single-rank organization enhances signal integrity, enabling reliable 6400MT/s operation with hardware ECC correction across multi-DIMM configurations.
1. ECC safeguards every data transaction by instantly correcting single-bit errors, which is non‑negotiable for financial processing and database integrity.
2. Registered signal buffering isolates the memory controller from electrical loading spikes, enabling stable operation across fully populated server channels under 24/7 uptime.
3. DDR5 technology nearly doubles the core frequency advantage over previous generations, fueling high‑concurrency workloads like container orchestration and AI inference.
4. A 6400 MT/s data rate per pin translates into the PC5‑51200 bandwidth tier, clearing bottlenecks for software‑defined storage and heavy east‑west server traffic.
5. The 32 GB module density provides an ideal building block for virtualization hosts, preserving DIMM slot headroom while delivering the memory‑to‑core ratios cloud tenants demand.
The M321R4GA0EB2-CCP is a 32GB DDR5-6400 registered ECC RDIMM, purpose-built for enterprise servers where uptime and data fidelity are absolute priorities. In a virtualized cluster running dozens of VMs, a single undetected bit-flip in memory can corrupt a database, crash a hypervisor, or silently propagate errors across tenant data. The on‑die ECC corrects these single-bit errors at the hardware level, transforming catastrophic failure into a non‑event. Equally critical is the registered buffer, which isolates the electrical load from the CPU’s memory controller. This allows you to populate all channels with high‑density modules like this single‑rank x4 stick without sacrificing signal integrity, ensuring rock‑stable operation even in fully loaded 2P configurations supporting hundreds of VMs. For in‑memory databases such as Redis or SAP HANA, the DDR5-6400 speed paired with single‑rank architecture delivers the low latency and high bandwidth essential for sub‑millisecond query responses under sustained heavy writes. The single‑rank design also minimizes bank conflict stalls, so your analytics workflows complete faster and with deterministic performance—not just raw throughput, but the predictable quality of service that your SLA demands.
General Virtualization
For dense VM consolidation on dual-socket platforms, populate one DIMM per channel (1DPC) with these 32GB RDIMMs to balance capacity and memory bandwidth. A typical configuration of 8 or 16 modules delivers 256GB to 512GB, enabling high VM density without sacrificing DDR5-6400 speed. Avoid mixing ranks within the same channel to maintain signal integrity and reliable ECC operation during live migrations.
In-Memory Database
In-memory databases like Redis or SAP HANA demand both capacity and data protection. Deploy six or eight modules in a single-socket server to achieve 192–256 GB with ECC scrubbing and registered command stability. Configure all channels identically with identical single-rank x4 DIMMs to maximize 6400 MT/s throughput, minimizing tail latency under heavy key-value workloads.
High-Performance Computing
HPC clusters require maximum bandwidth per core. Use a balanced, fully populated configuration—typically one RDIMM per memory channel across all sockets—to sustain 6400 MT/s with consistent CL52 access. For memory-bandwidth-bound simulations, 8 or 16 of these 32GB modules per node provide 256–512 GB capacity while keeping rank count low per channel, preserving peak burst rates and reducing memory wall penalties.
Validated for servers: compatible with Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3.
Q: Can I mix this M321R4GA0EB2-CCP with other memory modules of different brands or speeds?
A: Mixing is not recommended. Server platforms demand strict uniformity; mismatched DIMMs can cause instability, reduce speed to the lowest common, or even prevent booting. Always populate with identical modules.
Q: Is this memory compatible with my system?
A: This 32GB DDR5-6400 ECC RDIMM is designed for servers supporting registered DDR5, such as 4th/5th Gen Intel Xeon Scalable or AMD EPYC 9004 series. Please verify your motherboard's qualified vendor list for this specific MPN.
Q: What is the recommended DIMM population order for optimal performance?
A: Consult your server board manual. Typically, populate one DIMM per channel first, balancing across all memory channels. For single-rank x4 modules, fill identical slots for symmetric memory interleaving and peak bandwidth.
Q: Does this module support overclocking or XMP profiles?
A: No. Registered ECC server memory operates exclusively at JEDEC standard DDR5-6400. Overclocking and XMP are disabled to guarantee deterministic performance and data integrity in mission-critical environments.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. High-quality DDR5 ECC RDIMMs typically exhibit an annualized failure rate below 0.5%, reflecting robust server-grade reliability under continuous operation.