HP 128GB DDR4-2666 ECC Load Reduced DIMM — 850883-001

The HP 850883-001 is a 128GB DDR4-2666 (PC4-21300) ECC Load Reduced DIMM spare part in an octal-rank 8Rx4 configuration for HPE ProLiant Gen10 servers. As the -001 spare designation for this capacity and speed, it delivers the same maximum per-slot DDR4-2666 density as the 815102-B21 option kit in a field service procurement format.

Key Features

• 128GB DDR4-2666 LRDIMM spare — maximum per-slot density for Gen10 ProLiant memory configurations
• 2666MHz (PC4-21300) load-reduced octal-rank design for Intel Xeon Scalable Gen10
• LRDIMM buffer enables 8Rx4 rank population while maintaining manageable memory bus load
• 1.2V energy-efficient 288-pin DDR4 for high-density enterprise server memory

Product Specifications

• Part Number: 850883-001
• Manufacturer: HP
• Capacity: 128GB
• Type: DDR4 ECC Load Reduced (LRDIMM)
• Speed: 2666MHz (PC4-21300)
• CAS Latency: CL19
• Voltage: 1.2V
• Ranks x Width: 8Rx4
• Pins: 288-pin

Memory Specifications

• Memory Standard: JEDEC DDR4-2666
• Error Correction: ECC (Error Correcting Code)
• Buffer Type: Load Reduced (LRDIMM)
• DRAM Generation: DDR4

Performance Specifications

• Peak Bandwidth: ~42.7 GB/s (PC4-21300)
• ECC Type: Single-bit error correction, multi-bit error detection
• RAS Features: Advanced ECC, memory mirroring, rank sparing (platform dependent)

Use Cases

• HPE ProLiant Gen10 spare parts inventory for 128GB DDR4-2666 LRDIMM field replacements
• In-memory database and SAP HANA deployments on Gen10 requiring maximum LRDIMM density
• Large-scale virtualization hosts needing 128GB per slot at DDR4-2666 speeds
• Service depot replacement for Gen10 high-memory LRDIMM configurations

Compatibility

• HPE ProLiant DL380 Gen10, DL560 Gen10, DL580 Gen10
• HPE ProLiant BL460c Gen10 and LRDIMM-capable Gen10 Xeon Scalable platforms
• Intel Xeon Scalable 1st/2nd Generation (Skylake-SP / Cascade Lake-SP) supporting DDR4-2666 LRDIMM

Frequently Asked Questions

Is 850883-001 interchangeable with 815102-B21?

Yes — 850883-001 is the spare part and 815102-B21 is the option kit. Both are HPE 128GB DDR4-2666 8Rx4 ECC LRDIMM modules with identical specifications — fully interchangeable in supported Gen10 configurations.

How does 128GB DDR4-2666 LRDIMM compare to 64GB DDR4-2666 RDIMM (815101-B21)?

850883-001 offers twice the per-slot capacity (128GB vs 64GB) using an LRDIMM load-reduced buffer to support 8 ranks. 815101-B21 is a 4Rx4 RDIMM at 64GB — choose based on per-slot capacity needs and whether your platform supports LRDIMM.

Can LRDIMMs be mixed with RDIMMs in the same ProLiant Gen10 server?

No — mixing LRDIMM and RDIMM types in the same server is not supported. All installed DIMMs must be of the same buffer type across all memory channels.

The HP 850883-001 128GB DDR4-2666 LRDIMM spare delivers maximum-density ECC server memory for HPE ProLiant Gen10 field replacement workflows. Get it in stock today at a competitive price.