Micron 64GB DDR4-3200 ECC LRDIMM 4Rx4 — MTA36ASF8G72LZ-3G2F1

The Micron MTA36ASF8G72LZ-3G2F1 is a 64GB DDR4-3200 ECC Load Reduced DIMM (LRDIMM) operating at 3200MHz (PC4-25600) with CL22 latency at 1.2V in Quad Rank x4 configuration. The LZ suffix designates Load Reduced type — distinct from the PZ (Registered) MTA36ASF8G72PZ family. LRDIMMs use a data buffer to reduce memory bus loading enabling higher capacity per channel for maximum memory density on Intel Xeon Scalable and AMD EPYC platforms.

Key Features

• 64GB capacity — LRDIMM load reduction enables 4Rx4 density
• Load Reduced (LRDIMM) — data buffer reduces bus loading for higher per-channel capacity
• Quad Rank x4 (4Rx4) — four ranks for maximum density
• LZ suffix — Load Reduced variant (distinct from PZ Registered)
• DDR4-3200 — highest standard DDR4 server speed

Product Specifications

• Part Number: MTA36ASF8G72LZ-3G2F1
• Manufacturer: Micron
• Capacity: 64GB
• Type: DDR4 ECC LRDIMM
• Speed: 3200MHz (PC4-25600)
• CAS Latency: CL22
• Voltage: 1.2V
• Ranks x Width: 4Rx4
• Pins: 288-pin

Memory Specifications

• Bandwidth: PC4-25600 (25.6 GB/s theoretical)
• ECC: Single-bit error correction, multi-bit error detection
• RAS Features: ECC, load reduced data buffer
• Buffer Type: Load Reduced — data buffer between controller and DRAM ranks

Use Cases

• Maximum memory capacity configurations requiring 64GB per slot via LRDIMM
• In-memory database and SAP HANA deployments on Intel Xeon Scalable platforms
• Virtualization hosts requiring maximum total memory per socket
• AMD EPYC servers requiring 64GB DDR4 LRDIMM per slot

Compatibility

• DDR4 LRDIMM slots on Intel Xeon Scalable (LGA3647) servers
• AMD EPYC (SP3) DDR4 server platforms supporting LRDIMM
• Not compatible with RDIMM-only or UDIMM-only platforms
• Verify server QVL — LRDIMM requires explicit platform support

Frequently Asked Questions

What is the difference between MTA36ASF8G72LZ-3G2F1 (LRDIMM) and MTA36ASF8G72PZ-3G2F1 (RDIMM)?

MTA36ASF8G72LZ-3G2F1 is a 64GB LRDIMM (Load Reduced) in 4Rx4 configuration while MTA36ASF8G72PZ-3G2F1 is a 64GB RDIMM (Registered) in 2Rx4 configuration. LZ = Load Reduced, PZ = Registered — they require different platform support.

What is the difference between LRDIMM and RDIMM?

LRDIMM uses a data buffer in addition to the register buffer to reduce electrical loading on the memory bus. This allows more ranks per channel enabling higher total capacity per socket — at the cost of slightly higher latency versus RDIMM.

Can LRDIMM be mixed with RDIMM in the same server?

No — LRDIMM and RDIMM cannot be mixed in the same server. All populated DIMM slots must use the same memory type.

The Micron MTA36ASF8G72LZ-3G2F1 delivers 64GB DDR4-3200 ECC LRDIMM in 4Rx4 configuration — the F1 Load Reduced variant for maximum memory density deployments on Intel Xeon Scalable and AMD EPYC DDR4 server platforms.