Lenovo ThinkSystem 16GB TruDDR5 5600MHz ECC UDIMM Memory Module
The Lenovo ThinkSystem 16GB TruDDR5 5600MHz ECC UDIMM (Part Number 4X77A99751) is a premium memory upgrade designed for enterprise-grade ThinkSystem servers. This 16GB DDR5 memory module combines cutting-edge TruDDR5 technology with error-correcting code (ECC) protection, delivering the reliability and performance your data center demands. Whether you're running virtualization workloads, database applications, or high-performance computing tasks, this 5600MHz ECC UDIMM ensures stable, certified operation across ThinkSystem platforms. The 1Rx8 unbuffered DIMM configuration provides optimal compatibility and cost-effective capacity expansion for mission-critical infrastructure.
Key Features
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16GB Capacity — Significant memory expansion for demanding server workloads
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TruDDR5 Technology — Next-generation DDR5 performance and efficiency
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5600MHz Speed — High-speed data transfer for responsive applications
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ECC Protection — Error-correcting code prevents data corruption in critical environments
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1Rx8 Configuration — Single-rank design optimizes performance and thermal efficiency
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Unbuffered UDIMM — Direct compatibility with ThinkSystem server architectures
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OS-Independent — Works seamlessly across multiple operating systems
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Enterprise-Grade Reliability — Lenovo-certified for ThinkSystem SR250 V3 and compatible platforms
Technical Specifications
| Specification |
Details |
| Manufacturer |
Lenovo Data Center |
| Part Number |
4X77A99751 |
| Memory Type |
TruDDR5 ECC UDIMM |
| Capacity |
16GB |
| Speed |
5600MHz |
| Configuration |
1Rx8 (Single Rank) |
| Form Factor |
Unbuffered DIMM (UDIMM) |
| ECC Support |
Yes |
| Compatibility |
ThinkSystem SR250 V3, other compatible ThinkSystem servers |
| Operating System Support |
OS-Independent |
Frequently Asked Questions
What is TruDDR5 memory and why does it matter for servers?
TruDDR5 is Lenovo's certified DDR5 memory technology that delivers superior performance, lower power consumption, and enhanced reliability compared to DDR4. For servers, TruDDR5 enables faster data processing, improved application responsiveness, and better energy efficiency — critical for data centers managing multiple workloads simultaneously.
Is this 16GB ECC UDIMM compatible with my ThinkSystem server?
This ThinkSystem 16GB TruDDR5 5600MHz ECC UDIMM is certified for ThinkSystem SR250 V3 and other compatible ThinkSystem platforms. Check your server's memory support documentation or contact your Lenovo representative to confirm compatibility with your specific model.
What does ECC protection do, and do I need it?
ECC (Error-Correcting Code) automatically detects and corrects single-bit memory errors before they cause system failures. For enterprise servers running databases, virtualization, or mission-critical applications, ECC protection is essential to prevent data corruption and unplanned downtime.
Can I mix this 16GB module with other memory modules?
Yes, you can mix this 5600MHz ECC UDIMM with other compatible ThinkSystem memory modules, provided they meet your server's specifications. For optimal performance and stability, Lenovo recommends using matched memory configurations when possible.
