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Lenovo 4X77A90965 ThinkSystem 32GB TruDDR5 6400MHz (2Rx8) RDIMM - Server Memory - DDR5-6400/PC5-51200
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Product Features
Product Overview
The Lenovo ThinkSystem 32GB TruDDR5 6400MHz RDIMM is a high-performance server memory module engineered for demanding enterprise workloads. Built with Lenovo's TruDDR5 technology, this module delivers 6400 MHz speed and 32 GB capacity in a dual-rank registered configuration.
Designed specifically for Lenovo ThinkSystem servers, this RDIMM ensures compatibility and reliability in data center environments. The registered signal processing enhances stability for multi-module configurations, making it ideal for memory-intensive applications and virtualization platforms.
Relevant factors for this section include Memory Size, Memory Technology, Memory Speed, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Technical Overview
This memory module operates at 6400 MHz under the DDR5-6400/PC5-51200 standard, providing substantial bandwidth for server applications. The dual-rank (2Rx8) architecture optimizes data access patterns, while registered signal processing reduces electrical load on the memory controller for improved signal integrity.
The 288-pin DIMM form factor aligns with industry-standard server memory slots, ensuring physical compatibility with supported Lenovo platforms. TruDDR5 technology incorporates advanced power management and error correction features tailored for server reliability.
Relevant factors for this section include Memory Size, Memory Technology, Memory Speed, Number of Pins. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
This RDIMM combines high capacity with cutting-edge DDR5 performance, offering a balanced upgrade path for Lenovo ThinkSystem servers. The registered design ensures stability in multi-module installations, while 6400 MHz speed accelerates data processing for compute-intensive tasks.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Enhanced Bandwidth, Server Reliability.
Enhanced Bandwidth
DDR5-6400/PC5-51200 delivers increased data transfer rates compared to previous generations, reducing bottlenecks in server applications.
- 6400 MHz operating frequency
- PC5-51200 data rate
- Dual-rank architecture for efficient access
Server Reliability
Registered signal processing improves electrical stability, essential for mission-critical server environments where uptime is paramount.
- Registered DIMM (RDIMM) design
- Optimized for multi-module configurations
- Lenovo ThinkSystem validation
Deployment / Use Cases
This memory module is purpose-built for Lenovo ThinkSystem server platforms, including the SR630 V4, SC750 V4, and SR650 V4 models. It serves as a direct upgrade or replacement component to expand memory capacity and improve system performance.
Ideal deployment scenarios include virtualization hosts, database servers, high-performance computing nodes, and enterprise application servers where additional memory bandwidth and capacity directly impact workload throughput. The registered configuration supports dense memory installations common in rack-mounted server deployments.
Server Memory Expansion
Add 32 GB modules to increase total system memory for virtualization, in-memory databases, or large-scale applications.
- Compatible with listed ThinkSystem models
- Supports mixed configurations with same-spec modules
- Hot-pluggable in supported servers
Performance Upgrade Path
Upgrade from older DDR4 or lower-capacity DDR5 modules to gain higher bandwidth and capacity for evolving workloads.
- 6400 MHz for reduced latency
- 32 GB per module for efficient density
- DDR5 future-proofing
Highlights
- 32 GB capacity for substantial memory expansion in server platforms
- TruDDR5 technology with 6400 MHz operating speed
- DDR5-6400/PC5-51200 memory standard
- Dual-rank (2Rx8) architecture for optimized data access
- Registered signal processing (RDIMM) for server stability
- 288-pin DIMM form factor
- Compatible with Lenovo ThinkSystem SR630 V4, SC750 V4, SR650 V4 servers
- Enterprise-grade reliability for data center deployments
Specifications
| Specifications | |
|---|---|
| Manufacturer | Lenovo Group Limited |
| Manufacturer Part Number | 4X77A90965 |
| Brand Name | Lenovo |
| Product Name | ThinkSystem 32GB TruDDR5 6400MHz (2Rx8) RDIMM |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 32 GB |
| Memory Technology | TruDDR5 |
| Memory Speed | 6400 MHz |
| Memory Standard | DDR5-6400/PC5-51200 |
| Memory Rank | Dual-rank |
| Signal Processing | Registered |
| Device Supported | Server |
| Physical Characteristics | |
| Number of Pins | 288-pin |
| Form Factor | DIMM |
| Miscellaneous | |
| Compatibility | Lenovo ThinkSystem SR630 V4 7DG9 Server Lenovo ThinkSystem SC750 V4 Server Lenovo ThinkSystem SR630 V4 Server Lenovo ThinkSystem SR650 SR650A V4 Server |
FAQ
What server models is this memory module compatible with?
This Lenovo ThinkSystem RDIMM is compatible with specific Lenovo ThinkSystem servers including the SR630 V4 (7DG9), SC750 V4, and SR650/SR650A V4 models. Always verify compatibility with your exact server model and BIOS version before installation, as memory requirements can vary between server generations and configurations.
What does 'Registered' mean for this memory module?
Registered refers to the signal processing type, making this a Registered DIMM (RDIMM). Registered memory includes a register between the memory controller and DRAM chips to reduce electrical load, improving signal integrity and stability in servers with multiple memory modules. This is essential for enterprise servers where reliability and multi-module support are critical.
What is the difference between DDR5-6400 and PC5-51200?
DDR5-6400 refers to the data transfer rate per pin (6400 megatransfers per second), while PC5-51200 indicates the module's theoretical peak bandwidth (51200 MB/s). Both specifications describe the same performance level: this module operates at 6400 MHz with a 64-bit interface, delivering up to 51200 MB/s of bandwidth under ideal conditions.
Can I mix this module with other memory in my server?
Mixing memory modules requires identical specifications including capacity, speed, rank, and signal processing type for optimal stability. This 32GB TruDDR5 6400MHz RDIMM should only be mixed with other modules having exactly the same specifications (32GB, DDR5-6400, dual-rank, registered). Consult your server's memory configuration guide for specific mixing rules and population guidelines.
What advantages does dual-rank (2Rx8) architecture provide?
Dual-rank architecture divides the memory module into two logical ranks that can be accessed independently, improving memory controller efficiency. The 2Rx8 designation indicates two ranks with eight memory chips per rank. This configuration often provides better performance than single-rank modules in server workloads by allowing more concurrent access to memory banks.
Is this memory module ECC capable?
This module utilizes registered signal processing (RDIMM) which typically works in conjunction with server platforms that support Error Correcting Code (ECC). While the specification doesn't explicitly state ECC, registered DDR5 memory in server environments generally operates with ECC functionality enabled by the server's memory controller. Confirm ECC support with your specific server platform documentation.
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