Lenovo 128GB 2933MHz DDR4 PC4-23400 ECC Registered CL21 288-Pin DIMM 1.2V Quad Rank x4 Memory Module – 4ZC7A15113

Lenovo 128GB DDR4-2933 ECC Registered LRDIMM — 4ZC7A15113

The Lenovo 4ZC7A15113 is a 128GB DDR4-2933 (PC4-23400) ECC Registered CL21 288-Pin DIMM operating at 1.2V in a quad rank x4 configuration. At 128GB per DIMM, this is a Load-Reduced DIMM (LRDIMM) leveraging quad rank x4 to achieve maximum per-slot capacity for Lenovo ThinkSystem servers requiring the highest memory density per channel.

Key Features

• 128GB — maximum-capacity DDR4 LRDIMM per slot
• DDR4-2933 (PC4-23400) — high-speed DDR4 for ThinkSystem servers
• ECC Registered — error correction and signal buffering
• Quad Rank x4 — maximum capacity via LRDIMM architecture
• 1.2V operating voltage
• CL21 latency
• 288-pin DIMM — standard server memory interface
• Validated for Lenovo ThinkSystem servers

Product Specifications

• Part Number: 4ZC7A15113
• Manufacturer: Lenovo
• OEM Status: OEM Lenovo ThinkSystem
• Capacity: 128GB
• Speed: DDR4-2933 (PC4-23400)
• Type: ECC Registered DIMM / LRDIMM
• Form Factor: 288-Pin DIMM
• Voltage: 1.2V
• CAS Latency: CL21
• Rank: Quad Rank x4

Memory Specifications

• Capacity: 128GB
• DDR Generation: DDR4
• Speed: 2933MHz (PC4-23400)
• CAS Latency: CL21
• Voltage: 1.2V
• ECC: Yes
• Buffered: Load-Reduced (LRDIMM)
• Rank: Quad Rank x4
• Form Factor: 288-Pin DIMM

Performance Specifications

• Bandwidth: Up to 23,400 MB/s (PC4-23400)
• Operating Temperature: 0°C to 85°C

Use Cases

• Maximum memory density configurations in Lenovo ThinkSystem DDR4 servers
• In-memory databases (SAP HANA, Oracle) requiring maximum per-server memory
• High-density virtualization with maximum VM memory per server
• Large-scale analytics and AI inference requiring maximum DDR4 capacity

Compatibility

• Lenovo ThinkSystem servers supporting DDR4-2933 128GB LRDIMM (Quad Rank x4)
• Verify platform support for 128GB LRDIMMs from Lenovo”s ThinkSystem memory configuration guide
• Not compatible with consumer desktop or laptop platforms

Frequently Asked Questions

What is the difference between 4ZC7A15113 and 02JG082?

Both are Lenovo 128GB DDR4-2933 ECC Registered CL21 Quad Rank x4 DIMMs — alternate part numbers that may differ in DRAM manufacturer or specific server model validation. Verify from Lenovo”s compatibility matrix.

What is an LRDIMM?

An LRDIMM (Load-Reduced DIMM) uses a memory buffer chip to reduce the electrical load on the memory controller, enabling higher DIMM counts and capacities per channel than standard RDIMMs. 128GB quad rank modules are typically LRDIMMs.

Is this compatible with non-Lenovo servers?

This is an OEM Lenovo ThinkSystem RDIMM validated for ThinkSystem servers. Compatibility with non-Lenovo servers is not guaranteed.

The Lenovo 4ZC7A15113 delivers 128GB of DDR4-2933 ECC Registered server memory in a quad rank x4 LRDIMM configuration — validated for Lenovo ThinkSystem servers requiring maximum DDR4 memory density for enterprise workloads.