Product Overview
The Lenovo ThinkSystem 64GB TruDDR5 6400MHz (2Rx4) RDIMM (Part# 4X77A90966) is a high-performance, enterprise-grade server memory module engineered for Lenovo ThinkSystem platforms. Leveraging DDR5 technology at 6400MHz bus speed, this dual-rank registered ECC DIMM delivers exceptional memory bandwidth and reliability for demanding workloads including virtualization, AI/ML inference, high-performance computing, and scale-out enterprise applications. With ECC (Error Correcting Code) support and registered buffering, this module is purpose-built for mission-critical server environments where data integrity and uptime are paramount.
Technical Specifications
| Part Number | 4X77A90966 |
| Capacity | 64GB (1 x 64GB) |
| Memory Type | DDR5 TruDDR5 SDRAM |
| Memory Standard | DDR5-6400 / PC5-51200 |
| Speed | 6400 MHz |
| Rank Configuration | 2Rx4 (Dual Rank, x4 organization) |
| Form Factor | 288-Pin RDIMM (Registered DIMM) |
| Error Correction | ECC (Error Correcting Code) |
| Signal Processing | Registered (Buffered) |
| CAS Latency | CL52 |
| Voltage | 1.1V |
| Die Density | 16Gb |
| Compatibility | Lenovo ThinkSystem SR630 V4, SR650 V4, SR645 V3, ThinkStation P5 Gen 2 (Intel Xeon Scalable Gen 6 platforms) |
| Manufacturer | Lenovo (Samsung OEM) |
Condition & Warranty
This module is offered in refurbished / pull condition, thoroughly inspected and tested prior to shipment. All modules are verified for full functionality and compatibility. Sold with a 90-day seller warranty covering defects in materials and workmanship. This is a genuine Lenovo OEM part suitable for enterprise deployment in ThinkSystem server environments.