The Lenovo 01DE973 is a 16GB DDR4-2666 (PC4-21300) Registered ECC (RDIMM) memory module designed specifically for server and workstation environments. This dual-rank (2Rx8) module operates at 1.2V and delivers enterprise-class reliability and performance. It is commonly supplied as an OEM module manufactured by Samsung, SK Hynix, or Micron for Lenovo systems.
Detailed Technical Specifications
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Capacity: 16GB
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Memory Type: DDR4 SDRAM
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Form Factor: 288-Pin RDIMM (Registered DIMM)
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Speed: 2666 MHz (PC4-21300 / PC4-2666V)
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Error Correction: ECC (Error-Correcting Code)
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Signal Type: Registered / Buffered
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Rank: Dual Rank 2Rx8
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CAS Latency: CL19
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Voltage: 1.2V
Compatibility & Supported Systems
This memory module is built for enterprise-level reliability and is typically used in Lenovo ThinkSystem and ThinkServer platforms.
Supported Systems Include:
Compatible / Equivalent Lenovo Part Numbers
The 01DE973 is functionally equivalent to the following Lenovo part numbers:
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4X70G88334
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4X77A08599
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4X77A08610
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7X77A01303
Important Usage Note
This is Registered ECC server memory (RDIMM) and is not compatible with standard desktop PCs or laptops that require unbuffered (UDIMM) memory.
This module is ideal for data center, virtualization, and enterprise workloads requiring high stability and data integrity.