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Green circuit board with gold edge connector and black memory chips

OWC

OWC 128GB DDR4 2933 CL21 4Rx4 288-pin 1.2V ECC Load Reduced LRDIMM memory upgrade

SKU CH-1WQB-3N0VR

Single 128 GB DDR4 2933 CL21 ECC LRDIMM for HP SimpliVity 325 Gen10 servers

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

Capacity 128GB

  • 128 GB capacity expands server memory headroom for virtualisation workloads
  • DDR4 2933 MHz CL21 speed delivers high bandwidth for data-intensive applications
  • ECC load-reduced design maintains signal integrity on heavily populated channels
  • 2 V operation reduces power draw per module in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Server-grade 128 GB LRDIMM upgrade

This module delivers 128 GB of DDR4 ECC Load-Reduced memory in a single 288-pin DIMM. It is built for the HP SimpliVity 325 Gen10 and other server, workstation or NAS platforms that require registered LRDIMM technology. Standard desktop boards cannot use it.

Capacity and headroom

The 128 GB stick runs at 2933 MT/s with CL21 latency and 1.2 V power draw, and it is backward compatible with 2133, 2400 and 2666 MT/s buses. It fills one slot with maximum density, so total system memory scales with the number of populated sockets. It will not operate in channels that demand unbuffered or standard registered DIMMs.

Build and connectors

The module uses a 288-pin DDR4 interface without a heat spreader, relying on chassis airflow for cooling. Load-Reduced architecture reduces electrical load on the memory controller, allowing higher capacities per channel. Mixing with unbuffered or registered ECC DIMMs is not supported, so all slots must use matching LRDIMMs.

Points forts

  • 128 GB capacity expands server memory headroom for virtualisation workloads
  • DDR4 2933 MHz CL21 speed delivers high bandwidth for data-intensive applications
  • ECC load-reduced design maintains signal integrity on heavily populated channels
  • 2 V operation reduces power draw per module in dense configurations
  • Backward compatible with 2133, 2400 and 2666 MHz systems for flexible deployment

Caractéristiques

BrandOWC
Part Number2L9D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemHP SimpliVity 325 Gen10

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Questions sur cet article

Will this 128GB 2933MHz DDR4 LRDIMM run alongside my existing 2666MHz modules in the HP SimpliVity 325 Gen10?

Yes, the module is backward compatible with 2133MHz, 2400MHz and 2666MHz speeds, so it will operate at the speed of the slowest installed DIMM.

How can I verify the 4Rx4 ECC load-reduced module is detected correctly after installation?

Check the system BIOS or iLO interface; it should show 128GB capacity, 2933MHz speed, CL21 latency, 1.2V voltage and ECC load-reduced status for the slot.

Does the single 288-pin DIMM ship with a heat spreader or any extra cables?

The module has no heat spreader and includes only the DIMM itself; no cables, brackets or additional accessories are supplied.

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