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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 4R8D51R816GB 16GB DDR5 4800 CL40 1Rx8 288-pin 1.1V ECC Registered RDIMM

SKU CH-HY61-HEZ91

16 GB DDR5-4800 ECC registered RDIMM for HP Cray XD220v, XD225v, XD295v and XD670 servers

  • Capacity16GB
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 16GB

  • 16GB DDR5 4800 CL40 ECC Registered for server reliability
  • 1V low-voltage operation reduces power draw in dense configs
  • 288-pin RDIMM form factor fits HP Cray XD220v XD225v XD295v XD670
  • Single-rank 1Rx8 design supports high-capacity multi-channel layouts
  • Replaces HP part numbers P43322-B21 P50309-B21 P58354-H21 P62601-B21

Targeted server upgrade

This 16GB DDR5 ECC Registered RDIMM is built for HP Cray XD220v, XD225v, XD295v and XD670 systems. It serves administrators who need validated, registered memory with error correction for stable workloads. It is not for standard desktop PCs or consumer motherboards that accept only unbuffered modules.

Capacity and headroom

A single 16GB rank runs at 4800 MT/s with CL40 latency and 1.1V operation. The module adds one populated slot per channel, leaving remaining DIMM positions open for further expansion up to the platform limit. Performance scales with total channel population; a lone module cannot saturate multi-channel bandwidth on its own.

Build integration

The 288-pin registered design requires a server board that supports ECC RDIMMs and cannot be mixed with unbuffered or load-reduced DIMMs. No heat spreader is fitted, so airflow across the module must be provided by the chassis. It replaces HP part numbers P43322-B21, P50309-B21, P58354-H21 and P62601-B21.

Points forts

  • 16GB DDR5 4800 CL40 ECC Registered for server reliability
  • 1V low-voltage operation reduces power draw in dense configs
  • 288-pin RDIMM form factor fits HP Cray XD220v XD225v XD295v XD670
  • Single-rank 1Rx8 design supports high-capacity multi-channel layouts
  • Replaces HP part numbers P43322-B21 P50309-B21 P58354-H21 P62601-B21

Caractéristiques

BrandOWC
Part Number4R8D51R816GB
Capacity16GB
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo
Compatible SystemHP Cray XD220v
HP Cray XD225v
HP Cray XD295v
HP Cray XD670

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Questions sur cet article

Will this 1Rx8 288-pin ECC RDIMM run alongside existing DDR5 4800 CL40 modules in an HP Cray XD220v?

Yes, it matches the DDR5 4800 PC5-38400 CL40 1Rx8 1.1V registered specification required by the XD220v, XD225v, XD295v and XD670.

How can I verify the module is detected at 4800 MT/s with ECC active after installation?

Check the system BIOS or HP iLO interface; it should report 16 GB DDR5 4800 registered ECC memory with CL40 timings and 1.1 V operation.

Does the box contain only the memory module or are any cables or brackets included?

Only the single 16 GB DDR5 4800 CL40 1Rx8 288-pin 1.1 V ECC registered RDIMM is supplied; no cables, brackets or additional hardware are included.

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