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Green rectangular circuit board with gold edge connectors and black memory chips, no heat spreader

OWC

OWC 64GB DDR4 2933 PC4-23400 CL21 4Rx4 288-pin 1.2V ECC Load Reduced DIMM memory upgrade

SKU CH-YF8S-Y3SJV

A 64 GB DDR4 ECC load-reduced DIMM running at 2933 MHz CL21 for Fujitsu PRIMERGY servers

  • Total capacity64 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeLoad Reduced
  • Memory rank4Rx4
  • 64GB capacity expands server memory for demanding workloads
  • DDR4 2933MHz speed delivers high bandwidth for data-intensive applications
  • ECC load-reduced design ensures data integrity in critical environments
  • 2V operation reduces power consumption across compatible Fujitsu PRIMERGY systems
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz platforms for flexible deployment

OWC 64GB DDR4-2933 LRDIMM

This OWC module delivers 64GB of DDR4 ECC Load Reduced memory rated at 2933 MT/s with CL21 latency. It uses a 288-pin form factor and operates at 1.2V. The part is validated for Fujitsu PRIMERGY CX2570 M5, CX2560 M5, RX2530 M5, RX2540 M5 and RX4770 M5 servers. It replaces Fujitsu part numbers S26361-F4083-E464 and related SKUs.

Who this suits, who it does not

This module is for administrators upgrading or repairing the listed Fujitsu PRIMERGY servers with qualified ECC LRDIMM memory. It is not for standard desktop PCs, workstations that require unbuffered or registered ECC DIMMs, or systems that cannot accept load-reduced registered modules. Mixing with other ECC types is not supported.

Deciding specification: LRDIMM form factor

The single specification that decides fitment is the 288-pin DDR4 ECC Load Reduced DIMM form factor. Only platforms designed for LRDIMM memory can use this module; registered or unbuffered ECC slots will not accept it.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $469.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $7.34 per GB
Cheaper than about 55% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number2L9D44R464 GB
Total capacity64 GB
Product type288-Pin DDR4 ECC LRDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeLoad Reduced
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsFujitsu PRIMERGY CX2570 M5
Fujitsu PRIMERGY CX2560 M5
Fujitsu PRIMERGY RX2530 M5
Fujitsu PRIMERGY RX2540 M5
Fujitsu PRIMERGY RX4770 M5

Questions about this item

Which Fujitsu PRIMERGY server models accept this 64GB DDR4 2933 ECC Load Reduced DIMM?

This module is compatible with the Fujitsu PRIMERGY CX2570 M5, CX2560 M5, RX2530 M5, RX2540 M5 and RX4770 M5.

Can I mix this Load Reduced ECC module with existing Registered ECC DIMMs in the same server?

No. The manufacturer states this Load Reduced ECC memory cannot be mixed with Unbuffered or ECC Registered memory.

How do I confirm the module is running at the correct 2933 MT/s after installation?

Check the system BIOS or UEFI memory information screen; it should report DDR4 2933 (PC4-23400) CL21 at 1.2V for the installed DIMM.

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