HP 96GB DDR5-5600 ECC Registered DIMM — P65256-001

The HP P65256-001 is a 96GB DDR5-5600 (PC5-44800) ECC Registered DIMM and the spare part designation for the P64708-B21 option kit. Sharing identical dual-rank 2Rx4 specifications, 1.1V operation, and CL46 latency, it provides the same Gen11 DDR5 performance in a 288-pin form factor for replacement and service workflows.

Key Features

• 96GB DDR5 RDIMM spare part — direct replacement for P64708-B21 in Gen11 service scenarios
• 5600MHz (PC5-44800) delivering ~89.6 GB/s peak bandwidth per module
• Dual-layer ECC: DDR5 on-die ECC plus system-level error correction
• 1.1V low-voltage DDR5 for reduced thermal output in high-density racks

Product Specifications

• Part Number: P65256-001
• Manufacturer: HP
• Capacity: 96GB
• Type: DDR5 ECC Registered (RDIMM)
• Speed: 5600MHz (PC5-44800)
• CAS Latency: CL46
• Voltage: 1.1V
• Ranks x Width: 2Rx4
• Pins: 288-pin

Memory Specifications

• Memory Standard: JEDEC DDR5-5600
• Error Correction: On-die ECC + system-level ECC
• Buffer Type: Registered (RDIMM)
• DRAM Generation: DDR5

Performance Specifications

• Peak Bandwidth: ~89.6 GB/s (PC5-44800)
• ECC Type: DDR5 on-die ECC with system-level single-bit correction and multi-bit detection
• RAS Features: Post-package repair, patrol scrubbing, memory mirroring (platform dependent)

Use Cases

• HPE ProLiant Gen11 spare parts inventory and field service replacements
• Memory upgrades to 96GB per slot on Gen11 Xeon Scalable platforms
• In-memory analytics and large-scale virtualization requiring DDR5 bandwidth
• AI/ML workloads on HPE Gen11 infrastructure with high memory capacity needs

Compatibility

• HPE ProLiant DL380 Gen11, DL360 Gen11, DL560 Gen11
• HPE ProLiant ML350 Gen11 and DDR5-5600 RDIMM-capable Gen11 platforms
• Intel Xeon Scalable 4th/5th Generation (Sapphire Rapids / Emerald Rapids)

Frequently Asked Questions

Is P65256-001 interchangeable with P64708-B21?

Yes — P65256-001 is the spare part number and P64708-B21 is the option kit part number. Both are 96GB DDR5-5600 2Rx4 ECC RDIMMs with identical specifications and are fully interchangeable.

Can P65256-001 be used in non-HPE servers?

The module follows JEDEC DDR5-5600 RDIMM standards and may function in compatible third-party DDR5 platforms, but is validated and supported specifically for HPE ProLiant Gen11 QuickSpecs.

How many P65256-001 modules can be installed per server?

Maximum population depends on the specific server model and its memory channel configuration. Consult HPE ProLiant Gen11 QuickSpecs for your platform's maximum supported memory capacity.

The HP P65256-001 96GB DDR5-5600 RDIMM is the validated spare part for HPE ProLiant Gen11 high-density memory deployments. Order today — in stock at the best price.