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Green printed circuit board with black memory chips and gold edge connectors

OWC

OWC 64GB DDR4 2933MHz ECC Registered RDIMM 2Rx4 memory upgrade

SKU CH-EA4Q-HCR94

64GB DDR4 ECC registered RDIMM running at 2933MHz CL21 for Supermicro X11 server boards

  • Capacity64GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 64GB

  • 64GB capacity extends server memory headroom
  • ECC Registered design corrects data errors in critical workloads
  • 2933MHz DDR4 speed matches Supermicro X11 platform specs
  • 2V operation reduces power draw per module
  • Backward compatible with 2133, 2400 and 2666MHz systems

64GB DDR4 ECC RDIMM for Supermicro X11 servers

This 64GB DDR4 2933MHz ECC Registered RDIMM is built for Supermicro X11DGQ, X11DPD-L, X11DPD-M25, X11DPFF-SN and X11DPFF-SNR motherboards. It targets administrators expanding memory in workstations, servers or NAS systems that require registered error-correcting modules.

Replaces Supermicro MEM-DR464 part numbers

The module replaces Supermicro part numbers MEMDR464LCL01ER29, MEMDR464LHL02ER29, MEMDR464LSL01ER29 and MEM-DR464MC-ER29. It also runs at 2133MHz, 2400MHz and 2666MHz when the platform dictates a lower speed. The upgrade makes sense when capacity headroom is exhausted and the board supports 2Rx4 registered DIMMs.

Verify registered DIMM support

Confirm the motherboard accepts DDR4 288-pin ECC Registered memory and that the CPU memory controller supports the desired rank configuration. Registered DIMMs cannot be mixed with unbuffered modules in the same system. Check the vendor documentation for maximum capacity per channel and approved population order before ordering.

Privalumai

  • 64GB capacity extends server memory headroom
  • ECC Registered design corrects data errors in critical workloads
  • 2933MHz DDR4 speed matches Supermicro X11 platform specs
  • 2V operation reduces power draw per module
  • Backward compatible with 2133, 2400 and 2666MHz systems

Specifikacijos

BrandOWC
Part Number2R9D42R464GB
Capacity64GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11DGQ
Supermicro Motherboard X11DPD-L
Supermicro Motherboard X11DPD-M25
Supermicro Motherboard X11DPFF-SN
Supermicro Motherboard X11DPFF-SNR

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Does this 288-pin DDR4 RDIMM fit the DIMM slots on a Supermicro X11DPFF-SN motherboard?

Yes, the 288-pin DDR4 ECC registered DIMM is listed as compatible with the Supermicro X11DPFF-SN and the other X11 series boards named in the specifications.

What is the correct way to seat this registered ECC module so the retention clips engage?

Align the notch on the module with the key in the slot, press straight down evenly on both ends until the side clips snap shut, and verify the module sits flush with no gap.

When should I consider replacing this 64GB DDR4 2933MHz module?

Replace it if memory diagnostics report uncorrectable ECC errors, the system fails to POST with the module installed, or you upgrade to a platform that requires a different DDR generation or form factor.

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