HPE 64GB DDR5-4800 EC8 Registered DIMM — P62604-B21

The HPE P62604-B21 is a 64GB DDR5-4800 (PC5-38400) EC8 Registered DIMM in dual-rank 2Rx4 configuration and is the standard option kit for HPE ProLiant Gen11 servers. EC8 (Enhanced Correction 8) delivers advanced multi-bit error correction beyond standard DDR5 ECC, providing stronger data integrity for mission-critical enterprise workloads at 64GB density on Intel Xeon Scalable 4th Generation (Sapphire Rapids) DDR5-4800 platforms.

Key Features

• 64GB DDR5-4800 EC8 RDIMM option kit — standard procurement for Gen11 enhanced ECC memory
• EC8 advanced multi-bit error correction for mission-critical data integrity beyond standard ECC
• 4800MHz (PC5-38400) for Intel Xeon Scalable 4th Gen (Sapphire Rapids) Gen11 platforms
• 2Rx4 dual-rank at 1.1V for high-density Gen11 DDR5-4800 EC8 memory deployments

Product Specifications

• Part Number: P62604-B21
• Manufacturer: HPE
• Capacity: 64GB
• Type: DDR5 EC8 Registered (RDIMM)
• Speed: 4800MHz (PC5-38400)
• CAS Latency: CL40
• Voltage: 1.1V
• Ranks x Width: 2Rx4
• Pins: 288-pin

Memory Specifications

• Memory Standard: JEDEC DDR5-4800
• Error Correction: EC8 — enhanced multi-bit error correction beyond standard DDR5 ECC
• Buffer Type: Registered (RDIMM)
• DRAM Generation: DDR5

Performance Specifications

• Peak Bandwidth: ~76.8 GB/s (PC5-38400)
• ECC Type: EC8 — advanced multi-bit correction for mission-critical data integrity
• RAS Features: Post-package repair, patrol scrubbing, advanced error recovery (platform dependent)

Use Cases

• Standard option kit for Gen11 64GB DDR5-4800 EC8 RDIMM mission-critical memory builds
• Financial, healthcare, and government workloads requiring EC8 enhanced ECC at DDR5-4800
• High-density 64GB DDR5-4800 configurations on Sapphire Rapids Gen11 platforms
• New deployments requiring HPE standard option kit procurement for Gen11 EC8 memory

Compatibility

• HPE ProLiant DL380/DL360/DL560 Gen11 supporting EC8 DDR5-4800 memory
• HPE ProLiant ML350 Gen11 and EC8-capable DDR5-4800 Gen11 platforms
• Intel Xeon Scalable 4th Generation (Sapphire Rapids) natively supporting DDR5-4800

Frequently Asked Questions

Is P62604-B21 interchangeable with P43333-1A1?

Yes — P62604-B21 is the option kit and P43333-1A1 is the regional/revision variant. Both are HPE 64GB DDR5-4800 EC8 Registered DIMM 2Rx4 CL40 1.1V modules with identical specifications — fully interchangeable in supported HPE ProLiant Gen11 EC8 DDR5-4800 configurations.

What is the difference between EC8 and standard DDR5 ECC at 64GB density?

Standard DDR5 ECC corrects single-bit errors and detects multi-bit errors. EC8 (Enhanced Correction 8) provides multi-bit error correction — essential at 64GB density where higher cell counts increase multi-bit soft error probability. EC8 is recommended for mission-critical workloads where data integrity is paramount.

Can P62604-B21 be used on DDR5-6400 platforms at DDR5-4800 speed?

DDR5-4800 modules may be installed in DDR5-6400-capable platforms but will operate at DDR5-4800 speed — not at DDR5-6400. For maximum memory bandwidth on 5th Gen Xeon (Emerald Rapids) Gen11 platforms, use DDR5-6400 EC8 RDIMMs such as P69728-B21.

The HPE P62604-B21 64GB DDR5-4800 EC8 RDIMM option kit delivers enhanced multi-bit ECC protection with high-capacity DDR5 memory for HPE ProLiant Gen11 mission-critical deployments. Order today — in stock at the lowest price.