HPE P03053-091 64GB DDR4-2933 ECC RDIMM — 2Rx4 Server Memory

The HPE P03053-091 is a 64GB DDR4-2933 ECC Registered DIMM providing dual-rank x4 server memory for HPE ProLiant Gen10 and Gen10 Plus servers — delivering CL21 latency at 2933MHz (PC4-23400) with 1.2V operation and full ECC error correction, providing higher memory bandwidth than DDR4-2666 RDIMMs for HPE servers with Intel Xeon Scalable 2nd Gen (Cascade Lake) and 3rd Gen (Ice Lake) processors.

Key Features

• 64GB DDR4-2933 ECC RDIMM — 2Rx4 dual-rank for 64GB per-slot RDIMM capacity at 2933MHz
• 2933MHz speed — higher bandwidth than DDR4-2666 for memory-intensive HPE Gen10 workloads
• CL21 latency for DDR4-2933 RDIMM performance on HPE ProLiant Gen10 platforms
• 1.2V operation maintaining DDR4 standard voltage at increased frequency
• Full ECC protection with registered buffer for HPE ProLiant server reliability

Product Specifications

• Part Number: P03053-091
• Manufacturer: HPE
• Capacity: 64GB
• Type: DDR4 ECC Registered DIMM (RDIMM)
• Speed: 2933MHz (PC4-23400)
• CAS Latency: CL21
• Voltage: 1.2V
• Ranks x Width: 2Rx4
• Pins: 288-Pin

Memory Specifications

• ECC: Yes — ECC Registered
• Form Factor: DIMM (288-pin, full-height)
• Error Correction: SECDED ECC
• Memory Standard: PC4-23400 (DDR4-2933)

Performance Specifications

• Bandwidth: Up to 23,467 MB/s theoretical peak (vs. 21,333 MB/s for DDR4-2666)
• ECC Type: SECDED (Single Error Correct, Double Error Detect)
• RAS Features: ECC, memory mirroring, rank sparing (platform dependent)

Use Cases

• 64GB DDR4-2933 RDIMM for HPE ProLiant Gen10 servers with Cascade Lake Xeon processors
• Memory-bandwidth-sensitive workloads (HPC, AI training, streaming analytics) requiring >2666MHz
• High-density 64GB per-slot RDIMM configuration without requiring LRDIMM modules
• HPE Gen10 Plus (Ice Lake) deployments where DDR4-2933 is the target speed

Compatibility

• HPE ProLiant Gen10 with Intel Xeon Scalable 2nd Gen (Cascade Lake) — supports DDR4-2933 natively
• HPE ProLiant Gen10 Plus with Intel Xeon Scalable 3rd Gen (Ice Lake) — DDR4-2933 supported
• Not compatible with Gen9 servers (DDR4-2666 maximum on most Gen9 platforms)
• Verify HPE server QuickSpecs for 64GB RDIMM support at 2933MHz per slot count

Frequently Asked Questions

What advantage does DDR4-2933 (P03053-091) have over DDR4-2666 RDIMMs?

DDR4-2933 provides approximately 10% higher memory bandwidth than DDR4-2666 — from 21,333 MB/s to 23,467 MB/s per channel. This matters most for memory-bandwidth-sensitive workloads such as HPC simulations, large matrix operations, AI/ML training, and streaming analytics where memory throughput is a bottleneck.

Is P03053-091 an RDIMM or LRDIMM?

The P03053-091 is an RDIMM (Registered DIMM) — not an LRDIMM. At 64GB capacity in a 2Rx4 configuration, it achieves 64GB per slot without requiring LRDIMM buffering, making it compatible with RDIMM-only memory channels in HPE Gen10 servers that do not support LRDIMMs.

Can P03053-091 operate at 2666MHz in servers that do not support 2933MHz?

DDR4 RDIMMs are typically backward compatible and will operate at the highest speed supported by both the server platform and the installed processor. In servers supporting only DDR4-2666, the P03053-091 will run at DDR4-2666. Verify your HPE server's maximum supported RDIMM speed via HPE's memory configurator.

The HPE P03053-091 delivers 64GB DDR4-2933 ECC RDIMM capacity in a 2Rx4 dual-rank configuration — providing higher memory bandwidth than DDR4-2666 at 64GB per slot without LRDIMM for HPE ProLiant Gen10 and Gen10 Plus servers requiring maximum RDIMM density and memory bandwidth for HPC, AI, and memory-intensive enterprise workloads.