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Two green DDR5 RDIMM modules with gold contacts and black chips

OWC

OWC 4R8D52R4128P 128GB (2x64GB) DDR5 4800 CL40 2Rx4 288-pin 1.1V ECC Registered RDIMM memory upgrade

SKU CH-8CGD-0PNCS

A 128GB DDR5 4800 CL40 ECC registered RDIMM kit for HP ProLiant Gen11 servers

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR5 ECC RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.1V
  • ECCYes

Capacity 128GB (2 x 64GB)

  • 128 GB total capacity from two 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in compatible HP ProLiant Gen11 servers
  • JEDEC and RoHS compliant for warranty-safe upgrades

Server-grade DDR5 ECC kit

This OWC kit provides 128GB of DDR5 4800 memory in two 64GB registered DIMMs. It is built for HP ProLiant Gen11 servers including the DL385, DL560, DX360, DX365 and ML350. The modules carry ECC and registered buffering for data integrity in multi-socket workloads. Standard desktop boards cannot use this memory.

Capacity and headroom

Two 64GB 2Rx4 modules deliver 128GB total at CL40 latency and 1.1V. The DDR5 4800 speed feeds eight-channel ProLiant platforms with bandwidth for virtualisation, databases and large datasets. Workloads that exceed 128GB per two-channel pair will require additional DIMM slots or higher-density modules.

DDR5 4800 registered limits

The JEDEC PC5-38400 standard tops out at 4800 MT/s for registered ECC DIMMs, so this kit runs at the spec ceiling. Mixing with unbuffered or load-reduced DIMMs is not supported by the memory controller. Systems limited to lower DDR5 speeds will downclock the modules automatically.

Points forts

  • 128 GB total capacity from two 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces power draw in compatible HP ProLiant Gen11 servers
  • JEDEC and RoHS compliant for warranty-safe upgrades

Caractéristiques

BrandOWC
Part Number4R8D52R4128P
Capacity128GB (2 x 64GB)
Type288-Pin DDR5 ECC RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.1V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP ProLiant DL385 Gen11
HP ProLiant DL560 Gen11
HP ProLiant DX360 Gen11
HP ProLiant DX365 Gen11
HP ProLiant ML350 Gen11

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Questions sur cet article

Can I add these 2Rx4 DDR5 4800 RDIMMs to the existing 1Rx8 DDR5 modules in my ProLiant DL385 Gen11?

Mixing ranks is generally supported by the platform, but the memory controller will run all channels at the speed of the slowest module. Check the server's memory population rules for the exact slot order.

How can I verify the 128 GB kit is running at 4800 MT/s with CL40 timings after installation?

Enter the BIOS or use a tool such as dmidecode to confirm each DIMM shows 4800 MT/s, CL40, 1.1 V and ECC registered status.

Does the 2 x 64 GB package include only the two RDIMMs or any extra brackets or cables?

The box contains the two 64 GB DDR5 4800 CL40 2Rx4 288-pin ECC registered RDIMMs and nothing else.

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