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

OWC

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

SKU CH-GDD7-78FF2

128 GB kit of two 64 GB DDR4-2933 ECC registered RDIMMs for HP Apollo 4500 and 4510 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)

  • 128 GB total capacity from two 64 GB modules
  • ECC registered design detects and corrects single-bit errors
  • DDR4 2933 speed with CL21 latency at 1.2 V
  • Validated for HP Apollo 4500 Gen10 and 4510 Gen10 servers
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server memory upgrade

This 128GB kit contains two 64GB DDR4 2933 ECC registered RDIMM modules built for HP Apollo 4500 Gen10 and 4510 Gen10 servers. The 2Rx4 dual-rank design runs at 1.2V with CL21 latency and provides error correction for data integrity. It is not compatible with standard desktop computers or with unbuffered and load-reduced memory types.

Thermals and power

The modules operate at the standard 1.2V DDR4 voltage without a heat spreader, relying on server chassis airflow for cooling. Power draw remains within JEDEC limits for registered DIMMs at this speed. Acoustic impact is negligible because the memory adds no moving parts and the registered buffer reduces electrical loading on the memory bus.

Compatibility and warranty

Backward compatibility covers 2133MHz, 2400MHz and 2666MHz systems, allowing the kit to clock down when installed in older Apollo platforms. The upgrade replaces a long list of HP part numbers including P19045-K21, P19045-B21, P00930-H21 and others. OWC provides a limited lifetime warranty with free technical support and an advanced replacement programme.

Points forts

  • 128 GB total capacity from two 64 GB modules
  • ECC registered design detects and corrects single-bit errors
  • DDR4 2933 speed with CL21 latency at 1.2 V
  • Validated for HP Apollo 4500 Gen10 and 4510 Gen10 servers
  • Backward compatible with 2133, 2400 and 2666 MHz 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 Apollo 4500 Gen10
HP Apollo 4510 Gen10

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Questions sur cet article

How do I install these 288-pin DDR4 RDIMMs in my HP Apollo 4500 Gen10 and what step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until both latches click, then verify in BIOS that all 128GB are recognised at 2933MHz; the step often missed is populating slots in the exact channel order shown in the HP service guide.

What maintenance or replacement will this 2Rx4 registered ECC kit need over time?

The modules themselves require no scheduled maintenance; replacement is only needed if a DIMM fails POST or logs uncorrectable ECC errors, at which point the advanced replacement program covers the failed 64GB stick.

What limit appears first when these CL21 1.2V modules run sustained workloads?

The memory controller's maximum supported speed caps throughput; if the CPU only supports 2666MHz or 2400MHz the kit will downclock to that speed, making controller frequency the first bottleneck.

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