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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 | Dual Rank x8 |
| Quantity of Pins | 288-pin |
| RAM Genre | RDIMM |
This 32GB DDR5-6400 Registered DIMM with ECC is engineered for server platforms running memory-intensive workloads such as virtualization, in-memory databases, and mission-critical enterprise applications where data integrity is non-negotiable. Its dual-rank x8 organization and registered signal architecture ensure robust signal integrity and high capacity per channel, while ECC provides hardware-level error correction to prevent data corruption at speed.
1. A generous 32 GB capacity per module allows dense server configurations to host more virtual machines and large in-memory databases without physical footprint expansion.
2. DDR5 technology unlocks higher bank counts and on‑die ECC, delivering the improved bandwidth and energy efficiency modern data centers need for scale‑out workloads.
3. A 6400 MT/s transfer rate keeps data‑hungry AI inference and real‑time analytics engines fully fed, slashing response latency under heavy concurrent access.
4. End‑to‑end ECC protection silently detects and corrects single‑bit errors, preserving data integrity for financial transactions and mission‑critical enterprise applications.
5. Registered signal buffering stabilizes command and address lines, letting servers populate all memory channels with lower loads and maintaining reliability in dense rack deployments.
The M321R4GA3EB2-CCPPF is a 32GB DDR5-6400 Registered ECC DIMM purpose-built for server platforms where uptime and data fidelity are non‑negotiable. Its four defining attributes—DDR5-6400 speed, ECC, registered buffering, and dual‑rank architecture—directly address the pain points of modern data centers.
In a virtualized cluster running dozens of VMs, ECC is your first line of defense. It transparently corrects single‑bit memory errors caused by cosmic rays or electrical noise, preventing silent data corruption that could crash hypervisors or slowly poison live databases. Because the module is registered, the on‑DIMM clock driver buffers command and address signals, letting you populate all 24 or 32 slots without signal degradation. This means you can confidently scale to terabytes of total memory for dense VDI or container farms, maintaining rock‑solid stability even under fully loaded configurations.
For in‑memory databases like Redis or SAP HANA, the dual‑rank design is the hidden accelerator. It interleaves accesses across two internal rank arrays, delivering higher sustained bandwidth that keeps the data pipeline saturated during random lookups. Paired with the native 6400MT/s throughput, it shrinks query latency for real‑time fraud detection or financial trading systems. Crucially, ECC ensures that every transaction processed in RAM reflects true values—so ledger reconciliations and analytics never propagate phantom errors. This memory closes the gap between raw speed and enterprise‑grade reliability, making it essential infrastructure for always‑available services.
General Virtualization
Populate one 32GB DDR5 RDIMM per memory channel (1 DPC) to retain the full 6400MT/s speed, providing 256GB per CPU in a typical 8-channel server. This config balances ample capacity for dozens of VMs with maximum memory bandwidth, while ECC and registered buffering ensure multi-tenant stability.
In-Memory Database
For in-memory databases, install two DIMMs per channel (2DPC) to maximize capacity, yielding up to 512GB per CPU with 32GB RDIMMs (if the system accepts a speed drop to 4800MT/s). Keeping entire datasets in RAM minimizes latency; ECC is essential for transactional integrity.
High Performance Computing
For HPC, target peak bandwidth by using one DIMM per channel, exactly as in virtualization, delivering 8×32GB per socket at full 6400MT/s. This dual-rank x8 configuration provides high throughput and low latency for simulation codes. ECC prevents silent data corruption during long-running jobs.
Compatibility verified: rigorously tested on Dell PowerEdge R760, HPE ProLiant DL380 Gen11, Lenovo ThinkSystem SR650 V3, and Supermicro X13 servers.
Q: Can I mix this M321R4GA3EB2-CCPPF with other memory modules of different brands or speeds?
A: Mixing this RDIMM with modules of different brands or speeds is strongly discouraged. It may cause POST failures, instability, or reduced reliability. Always populate all channels with identical part numbers for validated enterprise consistency.
Q: Is this memory compatible with my system?
A: This DDR5-6400 Registered ECC module is designed for servers with Intel Xeon Scalable or AMD EPYC platforms supporting PC5-51200. Please verify your motherboard's QVL and ensure firmware is updated for dual-rank x8 RDIMMs.
Q: What is the recommended DIMM population order for optimal performance?
A: Follow your server board's manual; generally, populate identical DIMMs starting from the first slot of each memory channel. For dual-rank x8 modules, balancing across all populated channels maximizes throughput and interleaving.
Q: Does this module support overclocking or XMP profiles?
A: No. This is a JEDEC-compliant, DDR5-6400 Registered ECC memory built for mission-critical stability. It does not support overclocking or XMP profiles, as enterprise servers require predictable, standardized operation.
Q: What warranty and typical failure rate can I expect?
A: This module includes a one-year warranty. Engineered as an enterprise-grade RDIMM, it demonstrates a very low annualized failure rate, typically well under 1% under normal operating conditions in compliant server environments.