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Eight green DDR4 LRDIMM modules in anti-static tray

OWC

OWC 1TB (8x128GB) DDR4 2933 CL21 4Rx4 288-pin 1.2V ECC LRDIMM Kit for Supermicro X11SPA-TF

SKU CH-A6NJ-E4M2B

Eight 128 GB DDR4 2933 ECC load-reduced DIMMs totalling 1 TB, validated for Supermicro X11SPA-TF servers

  • Capacity1TB (8 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 1TB (8 x 128GB)

  • 1TB total capacity across eight 128GB modules
  • DDR4 2933 CL21 ECC load-reduced for server reliability
  • 2V operation with 4Rx4 organisation for high density
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666MHz systems

OWC 1TB DDR4 2933 ECC LRDIMM Kit

This kit provides 1TB of DDR4 2933 memory across eight 128GB modules for the Supermicro X11SPA-TF motherboard. Each 288-pin LRDIMM operates at 1.2V with CL21 latency and 4Rx4 organisation. ECC load-reduced technology supports data integrity in server and workstation environments.

Server Builders Needing Maximum Capacity

Suits administrators upgrading a Supermicro X11SPA-TF to its full 1TB limit with validated ECC load-reduced modules. Not for desktop PCs, laptops or consumer motherboards that accept only unbuffered or standard registered DIMMs. Builders requiring unbuffered ECC or registered ECC memory must select a different module type.

4Rx4 Load-Reduced Architecture

The 4Rx4 load-reduced design reduces electrical load on the memory controller, allowing eight 128GB modules to run at DDR4 2933 on the X11SPA-TF. Standard registered or unbuffered DIMMs cannot achieve this density on the platform. Mixing ranks or buffer types will prevent the system from posting.

Puntos fuertes

  • 1TB total capacity across eight 128GB modules
  • DDR4 2933 CL21 ECC load-reduced for server reliability
  • 2V operation with 4Rx4 organisation for high density
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Backward compatible with 2133, 2400 and 2666MHz systems

Especificaciones

BrandOWC
Part Number2L9D44R41TBK
Capacity1TB (8 x 128GB)
Type288-Pin DDR4 ECC LRDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11SPA-TF

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Preguntas sobre este artículo

Will the 288-pin LRDIMM modules fit the DIMM slots on my Supermicro X11SPA-TF motherboard?

Yes, the 288-pin DDR4 LRDIMM form factor matches the registered DIMM slots on the X11SPA-TF; the board accepts up to 12 modules so the 8-module kit installs directly.

What is the correct population order for the eight 128GB 4Rx4 modules on the X11SPA-TF?

Fill the eight slots associated with CPU1 first — DIMMA1, DIMMB1, DIMMC1, DIMMD1, DIMME1, DIMMF1, DIMMG1, DIMMH1 — before adding any modules to the CPU2 channels.

When should I expect to replace the 1.2V LRDIMMs in a 24/7 server workload?

DDR4 LRDIMMs typically run for five to seven years in continuous operation; plan replacement if corrected ECC error counts rise or the system logs recurring memory events.

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