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

OWC

OWC 128GB DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC LRDIMM memory upgrade

SKU CH-6G69-EWK0M

Single 128 GB DDR4 3200 CL22 4Rx4 ECC load-reduced DIMM for compatible Supermicro server boards

  • Capacity128GB
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 128GB

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  • 128 GB single-module capacity doubles server density
  • ECC load-reduced design protects data integrity under heavy workloads
  • DDR4 3200 CL22 at 1.2 V balances speed and power efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

128GB DDR4 ECC LRDIMM for Supermicro servers

This 128GB DDR4 3200 CL22 4Rx4 288-pin 1.2V ECC Load Reduced DIMM is built for Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i motherboards. It targets server, workstation and NAS operators who need maximum single-module capacity with error correction and reduced electrical load on the memory bus.

Replaces lower-capacity DDR4 LRDIMM

The module runs at 3200MHz PC4-25600 and is backward compatible with 2133MHz, 2400MHz, 2666MHz and 2933MHz systems. The jump is worth it when your workload demands 128GB per slot and the platform supports Load Reduced ECC; it will not work in desktops or alongside Unbuffered or Registered ECC memory.

Standard 288-pin DIMM installation, no heat spreader

Align the notch, press until the latches click, and verify population rules in the motherboard manual. Common issues include mixing Load Reduced with Registered or Unbuffered DIMMs, exceeding the board's maximum rank count per channel, or installing in a consumer board that cannot initialise ECC LRDIMM.

Helstu kostir

  • 128 GB single-module capacity doubles server density
  • ECC load-reduced design protects data integrity under heavy workloads
  • DDR4 3200 CL22 at 1.2 V balances speed and power efficiency
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems

Tæknilýsing

BrandOWC
Part Number3L2D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 3200 (PC4 25600)
CAS LatencyCL22
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard H12DSG-O-CPU
Supermicro Motherboard H12DST-B
Supermicro Motherboard H12DSU-iN
Supermicro Motherboard H12SSL-C
Supermicro Motherboard H12SSL-i

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Will the 288-pin DDR4 LRDIMM fit my Supermicro H12SSL-i motherboard?

Yes, the module is validated for the H12SSL-i and other listed Supermicro boards. It uses the standard 288-pin DDR4 form factor and 1.2 V operation required by those platforms.

Do I need to populate specific DIMM slots or configure the BIOS when installing this 4Rx4 ECC LRDIMM?

Install the module in the slot sequence recommended by the Supermicro manual for your CPU population. A common mistake is mixing this load-reduced DIMM with registered or unbuffered memory, which the board will not support.

How can I tell when the 128 GB LRDIMM should be replaced in a server that runs continuously?

Monitor the system event log for correctable ECC error counts. A sustained rise in correctable errors over weeks typically signals the module is degrading and should be swapped before uncorrectable errors appear.

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