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

OWC

OWC 128GB DDR4 2933MHz CL21 ECC Registered RDIMM 2R9D44R4128G memory upgrade

SKU CH-QM4Z-MVY18

128 GB DDR4 2933 MHz ECC registered DIMM for Supermicro X11SPA‑TF, X11SPD‑F, X11SPG‑TF, X11SPH‑nCTF and X11SPH‑nCTPF motherboards

  • Capacity128GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2933 (PC4 23400)
  • CAS LatencyCL21
  • Voltage1.2V
  • ECCYes

Capacity 128GB

  • 128GB capacity extends server memory headroom for virtualisation workloads
  • ECC registered design detects and corrects single-bit errors to protect data integrity
  • DDR4 2933MHz CL21 timing delivers high throughput for multi-threaded applications
  • Validated for Supermicro X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF motherboards
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz systems for flexible deployment

Targeted Server Upgrade

This 128GB DDR4 ECC Registered RDIMM is built for Supermicro X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF motherboards. It serves administrators expanding memory capacity in compatible server, workstation or NAS platforms.

Build Integration Requirements

The module requires a 288-pin DDR4 slot supporting registered ECC memory and cannot be mixed with unbuffered DIMMs. It operates at 1.2V and fits systems designed for PC4-23400 speeds while maintaining compatibility with 2133MHz, 2400MHz and 2666MHz bus rates.

Sustained Load Behaviour

ECC circuitry corrects single-bit errors during continuous operation, preserving data integrity across extended workloads. Registered signalling reduces electrical load on the memory controller, helping maintain stability when all ranks are fully populated under persistent demand.

Points forts

  • 128GB capacity extends server memory headroom for virtualisation workloads
  • ECC registered design detects and corrects single-bit errors to protect data integrity
  • DDR4 2933MHz CL21 timing delivers high throughput for multi-threaded applications
  • Validated for Supermicro X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF motherboards
  • Backward compatible with 2133MHz, 2400MHz and 2666MHz systems for flexible deployment

Caractéristiques

BrandOWC
Part Number2R9D44R4128G
Capacity128GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2933 (PC4 23400)
CAS LatencyCL21
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemSupermicro Motherboard X11SPA-TF
Supermicro Motherboard X11SPD-F
Supermicro Motherboard X11SPG-TF
Supermicro Motherboard X11SPH-nCTF
Supermicro Motherboard X11SPH-nCTPF

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Questions sur cet article

Will the 128GB capacity run at the full 2933MHz speed under sustained server workloads?

The module is rated DDR4 2933 (PC4-23400) with CL21 timing and 1.2V operation, so it maintains that speed under load when the motherboard supports it.

How much heat does a 4Rx4 registered DIMM produce during all-day operation without a heat spreader?

Registered ECC modules run at 1.2V; the lack of a heat spreader means airflow from the server chassis handles cooling during continuous use.

Which specific Supermicro motherboards must I already own for this 288-pin RDIMM to work?

Compatible boards are X11SPA-TF, X11SPD-F, X11SPG-TF, X11SPH-nCTF and X11SPH-nCTPF; it will not work in standard desktop systems.

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