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Two green DDR4 RDIMM modules with gold contacts and black chips

OWC

OWC 128GB (2x64GB) DDR4 2933 PC4-23400 CL21 2Rx4 288-pin 1.2V ECC Registered RDIMM for HP Workstation Z6 G4

SKU CH-2TJK-457XF

ECC registered DDR4 kit with two 64 GB modules at 2933 MHz for HP Z6 G4 workstations

  • 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 critical workloads
  • 128 GB kit (2 × 64 GB modules) expands workstation memory capacity
  • DDR4 2933 MHz CL21 speed matches HP Z6 G4 specifications
  • 2 V low-voltage operation reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

HP Z6 G4 memory kit

This OWC kit delivers 128 GB of DDR4 ECC registered memory in two 64 GB modules. It is built for the HP Workstation Z6 G4 and runs at 2933 MHz with CL21 latency at 1.2 V. The 2Rx4 registered DIMMs provide error correction for stable workstation workloads.

2Rx4 registered DIMMs

The dual-rank registered design adds a buffer that reduces electrical load on the memory controller. ECC circuitry detects and corrects single-bit errors to protect data integrity. Modules operate at 1.2 V and are backward compatible with 2133, 2400 and 2666 MHz systems.

Workstations needing registered ECC

Suits IT teams upgrading or repairing HP Z6 G4 workstations that require registered ECC memory. Not for standard desktop PCs that accept only unbuffered non-ECC modules. Also unsuitable for systems that need load-reduced DIMMs or capacities beyond 128 GB.

Puntos fuertes

  • ECC registered design protects data integrity in critical workloads
  • 128 GB kit (2 × 64 GB modules) expands workstation memory capacity
  • DDR4 2933 MHz CL21 speed matches HP Z6 G4 specifications
  • 2 V low-voltage operation reduces power draw and heat
  • Backward compatible with 2133, 2400 and 2666 MHz systems

Especificaciones

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 Workstation Z6 G4

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Preguntas sobre este artículo

Will the 288-pin DDR4 ECC Registered RDIMM modules need any firmware updates or periodic replacement?

The modules are JEDEC-compliant DDR4 2933 CL21 1.2V parts with no heat spreader; they require no firmware updates and have no scheduled replacement interval.

What limit appears first when the 2Rx4 64GB DIMMs run at 2933 MT/s continuously?

Sustained operation is bounded by the DDR4 2933 CL21 timing and 1.2V voltage; the registered buffer and ECC logic add latency but do not impose a lower thermal or power ceiling.

How much heat and power do the two 1.2V DDR4 2933 RDIMMs produce under all-day load?

Each 64GB 2Rx4 module runs at 1.2V without a heat spreader; total power draw stays within standard DDR4 2933 registered DIMM limits, so airflow in the Z6 G4 chassis is sufficient.

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