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Two green 288-pin DDR4 RDIMM modules, no heat spreader

OWC

OWC 128GB (2x64GB) DDR4 2933 CL21 2Rx4 ECC RDIMM memory upgrade

SKU CH-P4J1-ZYBR0

A 128 GB DDR4 2933 CL21 ECC registered dual-rank kit of two 64 GB modules for HP Cloudline CL2600 Gen10, CL3100 Gen10, CL4100 Gen10 and CL5800 Gen10 servers

  • Capacity128GB (2 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB (2 x 64GB)

  • ECC registered design protects data integrity in servers
  • 128 GB kit with two 64 GB modules expands capacity
  • DDR4 2933 speed with CL21 latency delivers responsive performance
  • 2 V operation reduces power draw and heat
  • Validated for HP Cloudline CL2600 CL3100 CL4100 CL5800 Gen10 systems

Server Memory Kit

This OWC upgrade kit delivers 128GB of DDR4 ECC registered memory across two 64GB modules. It is built for HP Cloudline CL2600 Gen10, CL3100 Gen10, CL4100 Gen10 and CL5800 Gen10 servers. The modules run at 2933MHz with CL21 latency and 1.2V operation. This memory is not compatible with standard desktop computers or unbuffered configurations.

Thermals and Power

Each module operates at the standard DDR4 voltage of 1.2V, keeping power draw predictable in dense server configurations. No heat spreaders are fitted, so airflow through the chassis manages thermals directly. Registered buffering adds minimal latency while maintaining signal integrity across fully populated channels. Backward compatibility with 2133MHz, 2400MHz and 2666MHz systems allows flexible deployment.

Compatibility and Replacement

The kit replaces multiple HP part numbers including P19045-K21, P00930-H21 and P14636-001 for straightforward procurement. ECC registered architecture prevents data corruption in critical workloads but cannot be mixed with load-reduced or unbuffered DIMMs. Buyers who need consumer desktop memory or non-ECC modules should look elsewhere. JEDEC and RoHS compliance ensures broad platform acceptance.

Points forts

  • ECC registered design protects data integrity in servers
  • 128 GB kit with two 64 GB modules expands capacity
  • DDR4 2933 speed with CL21 latency delivers responsive performance
  • 2 V operation reduces power draw and heat
  • Validated for HP Cloudline CL2600 CL3100 CL4100 CL5800 Gen10 systems

Caractéristiques

BrandOWC
Part Number2R9D42R4128P
Capacity128GB (2 x 64GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP Cloudline CL2600 Gen10
HP Cloudline CL3100 Gen10
HP Cloudline CL4100 Gen10
HP Cloudline CL5800 Gen10

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Questions sur cet article

How do I install the 288-pin DDR4 RDIMM modules in my HP Cloudline CL4100 Gen10, and what step do people often miss?

Power down the server, open the chassis, and seat each 64GB module firmly into the correct DDR4 slots until the latches click; the step many miss is confirming the BIOS recognises the full 128GB at 2933MHz before closing the case.

What maintenance or replacement will the ECC registered DIMMs need over time?

No scheduled maintenance is required; if a module ever fails the ECC logic will log correctable errors and the server will alert you, at which point you replace only the faulty 64GB stick.

What limit appears first when the kit runs at 2933MHz CL21 under sustained load?

The CAS latency of CL21 at 2933MHz sets the timing ceiling; sustained workloads will hit that latency boundary before the 1.2V power envelope or thermal limits become a factor.

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