Lenovo 128GB 3200MHz DDR4 PC4-25600 CL22 288-Pin ECC Registered DIMM 1.2V Quad Rank x4 Memory Module – 4ZC7A15125

Lenovo 128GB DDR4-3200 ECC Registered LRDIMM — 4ZC7A15125

The Lenovo 4ZC7A15125 is a 128GB DDR4-3200 (PC4-25600) ECC Registered DIMM operating at 1.2V with CL22 latency in a quad rank x4 configuration. At 128GB per DIMM in a quad rank x4 configuration, this is a Load-Reduced DIMM (LRDIMM) delivering maximum-capacity DDR4-3200 memory for Lenovo ThinkSystem servers requiring the highest memory density per channel at DDR4-3200 speeds.

Key Features

• 128GB — maximum-capacity DDR4-3200 LRDIMM per slot
• DDR4-3200 (PC4-25600) — highest DDR4 speed for ThinkSystem servers
• ECC Registered — error correction and signal buffering
• Quad Rank x4 — maximum capacity via LRDIMM architecture
• 1.2V operating voltage
• CL22 latency
• 288-pin DIMM — standard server memory interface
• Validated for Lenovo ThinkSystem servers

Product Specifications

• Part Number: 4ZC7A15125
• Manufacturer: Lenovo
• OEM Status: OEM Lenovo ThinkSystem
• Capacity: 128GB
• Speed: DDR4-3200 (PC4-25600)
• Type: ECC Registered DIMM / LRDIMM
• Form Factor: 288-Pin DIMM
• Voltage: 1.2V
• CAS Latency: CL22
• Rank: Quad Rank x4

Memory Specifications

• Capacity: 128GB
• DDR Generation: DDR4
• Speed: 3200MHz (PC4-25600)
• CAS Latency: CL22
• Voltage: 1.2V
• ECC: Yes
• Buffered: Load-Reduced (LRDIMM)
• Rank: Quad Rank x4
• Form Factor: 288-Pin DIMM

Performance Specifications

• Bandwidth: Up to 25,600 MB/s (PC4-25600)
• Operating Temperature: 0°C to 85°C

Use Cases

• Maximum memory density configurations in Lenovo ThinkSystem DDR4-3200 servers
• In-memory databases (SAP HANA, Oracle) requiring maximum per-server memory at DDR4-3200
• High-density virtualization with maximum VM memory per server
• Large-scale analytics and AI inference requiring maximum DDR4-3200 capacity

Compatibility

• Lenovo ThinkSystem servers supporting DDR4-3200 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 4ZC7A15125 (DDR4-3200) and 4ZC7A15113 / 02JG082 (DDR4-2933)?

4ZC7A15125 is a 128GB DDR4-3200 LRDIMM while 4ZC7A15113 and 02JG082 are 128GB DDR4-2933 LRDIMMs. The DDR4-3200 variant provides higher bandwidth (25,600 MB/s vs 23,400 MB/s) for newer ThinkSystem platforms.

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 4ZC7A15125 delivers 128GB of DDR4-3200 ECC Registered server memory in a quad rank x4 LRDIMM configuration — validated for Lenovo ThinkSystem servers requiring maximum DDR4-3200 memory density for enterprise workloads.