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Four green DDR4 registered DIMMs with gold contacts, no heat spreaders

OWC

OWC 256GB (4x64GB) DDR4 2933 CL21 ECC Registered RDIMM memory upgrade kit Synergy 480 660

SKU CH-5BBQ-HMH9F

A 256 GB ECC registered DDR4-2933 kit of four 64 GB modules for HP Synergy 480 and 660 Gen10 servers

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity across four 64 GB modules
  • DDR4 2933 MHz speed with CL21 latency for server workloads
  • ECC registered design detects and corrects data errors automatically
  • 2 V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Server-grade ECC kit for HP Synergy

This 256GB kit supplies four 64GB DDR4 2933 CL21 registered DIMMs built for HP Synergy 480 Gen10 and 660 Gen10 compute modules. ECC and register circuitry correct single-bit errors and reduce electrical load on the memory bus, a requirement for stable operation in multi-socket server chassis. The modules run at 1.2V and conform to JEDEC PC4-23400 timing.

Suited for compatible blade refreshes

The kit targets administrators upgrading or populating HP Synergy 480 Gen10 and 660 Gen10 bays with maximum-capacity registered ECC memory. It will not work in standard desktop boards, consumer laptops or any system that accepts only unbuffered or load-reduced DIMMs. Buyers needing non-ECC memory, lower capacities or different form factors must select a different product line.

Steady throughput under sustained load

Registered signalling and ECC checking maintain data integrity during continuous multi-threaded workloads such as virtualisation, database serving or high-performance computing. Backward compatibility with 2133, 2400 and 2666MHz buses allows the modules to clock down automatically when installed in slower slots without manual configuration. The absence of heat spreaders relies on chassis airflow for thermal management during prolonged operation.

Punti di forza

  • 256 GB total capacity across four 64 GB modules
  • DDR4 2933 MHz speed with CL21 latency for server workloads
  • ECC registered design detects and corrects data errors automatically
  • 2 V operation reduces power draw in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Caratteristiche tecniche

BrandOWC
Part Number2R9D42R4256S
Capacity256GB (4 x 64GB)
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemHP Synergy 480 Gen10
HP Synergy 660 Gen10

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Domande su questo articolo

Do I need an HP Synergy 480 Gen10 or 660 Gen10 server for this 256GB DDR4 2933 CL21 ECC Registered RDIMM kit to work?

Yes, this 4x64GB kit is validated for HP Synergy 480 Gen10 and 660 Gen10 systems. It requires a server platform that supports DDR4 288-pin ECC Registered memory at 1.2V.

Can I add these 2933MHz modules alongside existing 2400MHz or 2666MHz DDR4 ECC Registered DIMMs in the same Synergy server?

The modules are backward compatible with 2133MHz, 2400MHz and 2666MHz speeds. The system will run all installed DIMMs at the lowest common speed when mixed.

How can I confirm the kit is running at the correct 2933MHz CL21 settings after installation?

Check the BIOS or UEFI memory information screen. It should report DDR4 2933 (PC4-23400) at CL21, 1.2V, with ECC Registered and 2Rx4 organisation for each of the four 64GB modules.

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