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Two green DDR5 ECC registered RDIMM modules, no heat spreader

OWC

OWC 256GB (2x128GB) DDR5 4800 CL40 4Rx4 ECC Registered RDIMM Memory Upgrade Kit

SKU CH-1ERK-6MX0H

256 GB DDR5-4800 ECC registered RDIMM kit (2 × 128 GB, CL40, 1.1 V, 4Rx4) validated for HP ProLiant DL325, DL345, DL360, DL365 and DL380 Gen11 servers

  • Capacity256GB (2 x 128GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 256GB (2 x 128GB)

  • 256 GB capacity with two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • CL40 CAS latency at 1.1 V operating voltage
  • ECC registered 4Rx4 design for server reliability
  • Validated for HP ProLiant DL325 DL345 DL360 DL365 DL380 Gen11

Server DDR5 ECC RDIMM Kit

This 256GB kit contains two 128GB DDR5 4800 CL40 registered ECC modules built for HP ProLiant Gen11 servers including the DL325, DL345, DL360, DL365 and DL380. It is designed for workloads that require error-correcting registered memory in a 288-pin form factor. The modules operate at 1.1V and conform to JEDEC PC5-38400 standards. This kit will not work in standard desktop computers or with unbuffered or load-reduced DIMMs.

256GB Capacity For Dense Workloads

Two 128GB 4Rx4 modules deliver 256GB total capacity, suited for virtualisation, large databases and memory-intensive applications on supported Gen11 platforms. The registered buffer and ECC function maintain data integrity under sustained load. Systems that cannot address 4Rx4 registered DIMMs or that require unbuffered memory cannot use this kit. Mixing with other ranks or buffer types is not supported.

Registered 288-Pin Build

Each module is a registered 288-pin DDR5 RDIMM without a heat spreader, relying on server chassis airflow for cooling. The 1.1V operation matches the platform specification for Gen11 ProLiant systems. Installation follows standard DIMM slot population rules for the listed models. Builders needing unbuffered, load-reduced or non-ECC memory must select a different product.

Points forts

  • 256 GB capacity with two 128 GB modules
  • DDR5 4800 speed rated at PC5-38400
  • CL40 CAS latency at 1.1 V operating voltage
  • ECC registered 4Rx4 design for server reliability
  • Validated for HP ProLiant DL325 DL345 DL360 DL365 DL380 Gen11

Caractéristiques

BrandOWC
Part Number4R8D54R4256P
Capacity256GB (2 x 128GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant DL325 Gen11
HP ProLiant DL345 Gen11
HP ProLiant DL360 Gen11
HP ProLiant DL365 Gen11
HP ProLiant DL380 Gen11

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Questions sur cet article

Will the 4Rx4 4800MHz DDR5 modules run with existing RDIMMs in my ProLiant DL380 Gen11?

These 4Rx4 ECC Registered DDR5 modules at 4800MHz can be installed alongside other RDIMMs in the DL380 Gen11, but the server requires all slots to use the same registered ECC type — do not mix with unbuffered or load-reduced memory.

How can I confirm the 256GB kit is running at 4800MHz CL40 after installation?

After booting, enter the server BIOS or iLO interface and check the memory configuration screen; it will display each 128GB module at DDR5 4800 with CL40 latency and 1.1V operation.

What comes in the box and do I need extra parts for the DL360 Gen11?

The kit includes two 128GB DDR5 4800 CL40 4Rx4 288-pin ECC Registered RDIMMs; no additional components are required for the listed ProLiant Gen11 servers.

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