HPE P06037-B21 128GB DDR4-3200 ECC LRDIMM — 4Rx4 Server Memory

The HPE P06037-B21 is a 128GB DDR4-3200 ECC Load Reduced DIMM providing quad-rank x4 server memory for HPE ProLiant Gen10 Plus servers — delivering CL22 latency at 3200MHz (PC4-25600) with 1.2V operation and LRDIMM load reduction. The standard HPE option kit (-B21) for 128GB DDR4-3200 4Rx4 LRDIMM, providing the highest standard DDR4 speed at 128GB density for HPE Gen10 Plus platforms with Intel Xeon Scalable 3rd Gen (Ice Lake) processors.

Key Features

• 128GB DDR4-3200 ECC LRDIMM — 4Rx4 at DDR4's highest standard speed for Gen10 Plus
• 3200MHz (PC4-25600) — maximum DDR4 bandwidth at 128GB LRDIMM density
• HPE option kit (-B21) for standard channel and reseller procurement
• CL22 latency with LRDIMM load reduction for 4-rank 128GB per-slot operation
• Interchangeable with P11447-0A1 in supported HPE Gen10 Plus servers

Product Specifications

• Part Number: P06037-B21
• Manufacturer: HP / HPE
• Capacity: 128GB
• Type: DDR4 ECC Load Reduced DIMM (LRDIMM)
• Speed: 3200MHz (PC4-25600)
• CAS Latency: CL22
• Voltage: 1.2V
• Ranks x Width: 4Rx4
• Pins: 288-Pin

Memory Specifications

• ECC: Yes — ECC Load Reduced (LRDIMM)
• Form Factor: DIMM (288-pin, full-height)
• Error Correction: SECDED ECC with LRDIMM data buffer
• Memory Standard: PC4-25600 (DDR4-3200)

Performance Specifications

• Bandwidth: Up to 25,600 MB/s theoretical peak per channel
• ECC Type: SECDED with LRDIMM 4-rank data buffer abstraction
• RAS Features: ECC, memory mirroring, rank sparing (platform dependent)

Use Cases

• 128GB DDR4-3200 LRDIMM option kit for HPE ProLiant Gen10 Plus channel procurement
• High-density DDR4-3200 for SAP HANA, large in-memory databases, and VM consolidation on Gen10 Plus
• Highest DDR4 bandwidth at 128GB LRDIMM density for memory-intensive Gen10 Plus workloads
• Interchangeable with P11447-0A1 in supported HPE Gen10 Plus servers

Compatibility

• HPE ProLiant Gen10 Plus servers with Intel Xeon Scalable 3rd Gen (Ice Lake) processors
• DL360, DL380, DL560, DL580 Gen10 Plus for DDR4-3200 LRDIMM native support
• Requires LRDIMM-capable DIMM slots — cannot be mixed with RDIMM modules
• Not compatible with Gen10 (Cascade Lake) — requires Gen10 Plus Ice Lake for DDR4-3200

Frequently Asked Questions

What is the difference between P06037-B21 and P11447-0A1?

Both are 128GB DDR4-3200 ECC 4Rx4 CL22 LRDIMMs at 1.2V for HPE ProLiant Gen10 Plus — functionally identical. P06037-B21 is the standard HPE option kit (-B21) for regular channel ordering, while P11447-0A1 is the Smart Buy (-0A1) variant available through HPE's Smart Buy pricing program. Both are fully interchangeable in supported HPE Gen10 Plus servers.

How much total memory can an HPE DL380 Gen10 Plus support with 128GB LRDIMMs?

The HPE DL380 Gen10 Plus supports up to 32 DIMM slots with dual Intel Xeon Scalable 3rd Gen (Ice Lake) processors. With 32 x 128GB DDR4-3200 LRDIMMs, the DL380 Gen10 Plus achieves up to 4TB of DDR4 memory — sufficient for large SAP HANA scale-out nodes, high-density VM consolidation, and large in-memory database workloads requiring terabyte-scale DRAM.

Why does 128GB DDR4-3200 use 4Rx4 instead of 8Rx4 required at DDR4-2666?

Advances in DDR4 DRAM die density between generations enabled higher per-die capacity at DDR4-3200 speeds. Higher-density DRAM dies (16Gb and beyond) allow 128GB to be achieved with fewer ranks — 4Rx4 instead of 8Rx4 — reducing the electrical load on the memory channel. This allows the DDR4-3200 128GB LRDIMM to operate with simpler buffering requirements than the 8Rx4 DDR4-2666 variant.

The HPE P06037-B21 delivers 128GB DDR4-3200 ECC LRDIMM capacity in a 4Rx4 quad-rank configuration as the standard option kit variant — providing the highest DDR4 bandwidth at 128GB per-slot density for HPE ProLiant Gen10 Plus channel procurement, enabling SAP HANA, in-memory databases, and large VM consolidation at DDR4-3200 performance levels on Ice Lake Xeon platforms.