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Green rectangular circuit board with gold contacts and black memory chips along both sides

OWC

OWC 64GB DDR4 2933 ECC Registered DIMM 2R9D44R464GB

SKU CH-H9J8-N1MDF

64GB DDR4 2933 ECC registered DIMM for Fujitsu Celsius and Primergy servers and workstations

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • ECC registered design protects data integrity in servers
  • 64GB capacity expands memory for heavy workloads
  • 2933MHz speed with CL21 latency delivers responsive performance
  • 2V operation reduces power draw in dense configurations
  • Compatible with Fujitsu Celsius R970 and Primergy RX2530 M4, RX2540 M4, CX2560 M4, CX2570 M4

64 GB ECC Registered DIMM for Fujitsu Servers

This 64 GB DDR4 2933 ECC Registered DIMM is built for Fujitsu Celsius and Primergy workstations and servers. It targets administrators upgrading qualified platforms that require registered memory with error correction. The module is not compatible with standard desktop computers.

Single Module Upgrade with JEDEC Compliance

The package contains one 64 GB module rated at PC4-23400 CL21 and 1.2 V. It meets JEDEC standards and is ROHS compliant, providing a warranty-safe upgrade that matches OEM specifications. No heat spreader is included on this registered DIMM.

Verify Platform and Memory Population Rules

Confirm your system is a Fujitsu Celsius R970, Primergy CX2560 M4, CX2570 M4, RX2530 M4 or RX2540 M4 before ordering. Registered ECC memory cannot be mixed with unbuffered or load-reduced modules. The platform must support 4Rx4 organisation and DDR4 2933, 2666, 2400 or 2133 operation.

Puntos fuertes

  • ECC registered design protects data integrity in servers
  • 64GB capacity expands memory for heavy workloads
  • 2933MHz speed with CL21 latency delivers responsive performance
  • 2V operation reduces power draw in dense configurations
  • Compatible with Fujitsu Celsius R970 and Primergy RX2530 M4, RX2540 M4, CX2560 M4, CX2570 M4

Especificaciones

BrandOWC
Part Number2R9D44R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemFujitsu CELSIUS R970
Fujitsu PRIMERGY CX2560 M4
Fujitsu PRIMERGY CX2570 M4
Fujitsu PRIMERGY RX2530 M4
Fujitsu PRIMERGY RX2540 M4

Preguntas sobre este artículo

Does the 4Rx4 rank layout affect future capacity upgrades on the Fujitsu PRIMERGY RX2540 M4?

The module uses a 4Rx4 organisation; each 64 GB DIMM occupies four logical ranks, so the number of additional modules you can add depends on the server's maximum rank count per channel.

What thermal limit appears first when the DIMM runs continuously at 2933 MT/s in a Fujitsu CELSIUS R970?

With no heat spreader and a 1.2 V operating voltage, the DRAM junction temperature will reach its throttling point before the registered buffer or the motherboard VRM becomes the bottleneck.

How much power does the 64 GB registered DIMM draw during an all-day workload in a PRIMERGY CX2570 M4?

At 1.2 V the module typically draws a few watts per DIMM; total system power scales with the number of installed modules and the memory controller load.

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