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Green rectangular DDR4 288-pin LRDIMM module with black memory chips, no heat spreader, gold edge contacts, product label visible

OWC

OWC 64GB DDR4 2933 PC4-23400 CL21 4Rx4 288-pin 1.2V ECC LRDIMM Server RAM

SKU CH-VEQM-1EP3P

64GB DDR4 2933 ECC LRDIMM module for servers, workstations and NAS systems, compatible with Fujitsu S26361-F4083-L964 and backward compatible with 2133, 2400 and 2666MHz

  • Capacity64GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes
  • 64GB capacity lets servers handle heavy workloads
  • ECC load-reduced design protects data integrity in critical systems
  • DDR4 2933 speed with CL21 latency boosts throughput
  • 2V operation cuts power draw per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

Target workloads

This 64 GB DDR4 2933 ECC load-reduced DIMM is built for servers, workstations and NAS systems that require registered memory with error correction. It will not work in standard desktop computers and cannot be mixed with unbuffered or standard registered modules. The 4Rx4 organisation and 1.2 V operation suit high-density slots in multi-socket platforms.

Thermal and power profile

Operating at the JEDEC-standard 1.2 V, the module draws minimal power for its capacity and runs without a heat spreader, relying on chassis airflow. Load-reduced buffering reduces electrical load on the memory controller, helping keep system thermals stable under sustained workloads.

Upgrade scope

The part replaces Fujitsu S26361-F4083-L964 and is backward compatible with 2133, 2400 and 2666 MHz DDR4 speeds, allowing deployment in older platforms. The jump is worthwhile when expanding total memory beyond what lower-density DIMMs can provide or when replacing failed modules in qualified server configurations.

Points forts

  • 64GB capacity lets servers handle heavy workloads
  • ECC load-reduced design protects data integrity in critical systems
  • DDR4 2933 speed with CL21 latency boosts throughput
  • 2V operation cuts power draw per module
  • JEDEC and RoHS compliant for warranty-safe upgrades

Caractéristiques

BrandOWC
Part Number2L9D44R464GB
Capacity64GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo

Questions sur cet article

How do I install this 288-pin DDR4 LRDIMM and which slot population rule do people miss?

Power down the server, open the chassis, align the 288-pin key notch with the DDR4 slot, press firmly until both retention clips click, and populate all channels identically — mixing LRDIMM with registered or unbuffered DIMMs prevents the system from posting.

What maintenance or replacement will this 64 GB 4Rx4 module need over its service life?

No routine maintenance is required; the module has no heat spreader and runs at 1.2 V, so only a failed DIMM or a capacity upgrade would prompt replacement, and the limited lifetime warranty covers defects for as long as you own it.

What limit appears first when this CL21 2933 MHz LRDIMM runs sustained workloads?

The memory controller’s maximum supported rank count per channel is reached before bandwidth or thermal limits, because each 4Rx4 module presents four logical ranks and most server platforms cap at eight ranks per channel.

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