Executive Summary
As global data centers and enterprise IT infrastructures transition to next-generation high-performance computing (HPC) and AI workloads, selecting high-reliability server memory has become paramount. The CXMT CXMR4E464R8AS-CB1C is a high-density 64GB DDR5 ECC RDIMM operating at 5600 MT/s, designed specifically for enterprise-grade servers, cloud data centers, and critical IT deployments.
This procurement guide provides IT buyers, hardware procurement managers, and data center architects with a detailed technical breakdown, compatibility advice, and strategic purchasing recommendations for the CXMT DDR5 memory series.
1. Technical Specifications & Part Number Decoding
Understanding CXMT’s part numbering system ensures accurate component sourcing and avoids integration mismatches.
Key Specification Summary
| Feature | Specification Details |
| Manufacturer | ChangXin Memory Technologies (CXMT) |
| Part Number | CXMR4E464R8AS-CB1C |
| Memory Capacity | 64 GB |
| Memory Technology | DDR5 SDRAM |
| Form Factor | 288-pin Registered DIMM (RDIMM) |
| Data Transfer Rate | 5600 MT/s (PC5-44800 / PC5-5600B) |
| Rank & Configuration | 2Rx4 (Dual Rank, x4-based) |
| Error Correction | On-Die ECC & Sideband ECC (RDIMM Level) |
| Operating Voltage | 1.1V (Standard DDR5) |
| Target Application | Enterprise Servers, Workstations, Cloud Compute Nodes |
Part Number Breakdown
- CXMR: CXMT Registered DIMM (RDIMM) Series
- 4E: DDR5 Generation Standards
- 464: 64GB Module Capacity Identifier
- R8AS: Specific IC Architecture & Board Revision
- CB1C: Speed Grade & CAS Latency Tuning (5600 MT/s / JEDEC Standard)
2. Target Application Scenarios
The CXMT 64GB DDR5 5600MHz RDIMM is engineered for bandwidth-intensive, highly reliable enterprise workloads:
- AI & Machine Learning Training/InferenceHigh-speed 5600 MT/s memory bandwidth accelerates data feeding to GPUs and NPUs, reducing pipeline bottlenecks during large model processing.
- Enterprise Virtualization & Hyper-Converged Infrastructure (HCI)The 64GB per-DIMM capacity allows IT administrators to scale host memory density (e.g., reaching 1TB+ RAM per dual-socket server) for high-density VM hosting (VMware ESXi, Nutanix, Proxmox).
- In-Memory Databases & ERP SystemsIdeal for SAP HANA, Redis, and SQL clusters where raw memory throughput and Sideband ECC error protection directly impact transactional stability and query latency.
- Telecom & Edge ComputingMeets strict stability requirements for carrier-grade deployments, 5G core network virtualization, and localized edge processing.
3. Platform Compatibility & Hardware Integration
Before issuing a Purchase Order (PO), IT sourcing teams must verify platform compatibility:
- Processor Support:
- Intel® Xeon® Scalable Processors: Fully compatible with 4th Gen (Sapphire Rapids) and 5th Gen (Emerald Rapids) Xeon processors supporting DDR5-5600.
- AMD EPYC™ Processors: Fully optimized for AMD EPYC™ 9004/8004 Series (Genoa, Bergamo, Siena) platform architectures.
- System Vendors & OEM Servers:
- Suitable for custom white-box servers, Supermicro, Inspur, Lenovo ThinkSystem, Dell PowerEdge, and HPE ProLiant platforms configured for JEDEC-standard DDR5 RDIMMs.
4. Enterprise Procurement Checklist
When sourcing the CXMT CXMR4E464R8AS-CB1C in bulk, procurement managers should evaluate the following key factors:
- Channel Authenticity & TraceabilityEnsure vendors provide original CXMT factory packaging, clear batch codes, and Certificate of Conformity (CoC) to prevent counterfeit components in the supply chain.
- Warranty & RMA PolicyConfirm the warranty period (typically 3-year limited or lifetime limited warranty depending on distributor agreements) and advanced replacement (RMA) terms for critical server uptime.
- Multi-Channel Populating StrategyFor optimal performance, always populate memory modules in balanced configurations per CPU socket (e.g., 8 or 12 channels per CPU). Avoid mixing different memory clock speeds or ranks in the same memory channel.
- Supply Chain DiversityAdding CXMT memory into your Enterprise Bill of Materials (BOM) provides strategic supply chain resilience, reducing reliance on single-region DRAM suppliers while maintaining JEDEC standard performance.
5. Frequently Asked Questions (FAQ)
Q1: Can the CXMR4E464R8AS-CB1C be used in desktop PCs or gaming motherboards?
A: No. This is a Registered RDIMM with ECC designed specifically for servers and workstations. Standard consumer motherboards (X670, Z790, etc.) require Unbuffered UDIMMs and will not boot with RDIMMs.
Q2: Is CXMT DDR5 memory fully compliant with JEDEC specifications?
A: Yes, CXMT DDR5 server memory modules strictly adhere to JEDEC industry standards, ensuring drop-in replacement compatibility for major x86 server architectures.
Conclusion & Request for Quote (RFQ)
The CXMT CXMR4E464R8AS-CB1C 64GB DDR5 5600MHz RDIMM delivers enterprise-grade reliability, high memory bandwidth, and seamless integration for modern enterprise infrastructure.
For wholesale quotes, volume pricing, lead times, and compatibility validation testing, contact us.
Target Keywords
- CXMT 64GB DDR5 RDIMM
- CXMR4E464R8AS-CB1C
- Server Memory Procurement Guide
- DDR5 ECC 5600MHz Module
- Enterprise Server Memory Specs
- Data Center DRAM Sourcing
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