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Four green 288-pin DDR4 LRDIMM modules with black chips

OWC

OWC 512GB (4×128GB) DDR4 3200 CL22 ECC LRDIMM 288-pin 1.2V memory upgrade

SKU CH-5HF0-AYGR9

512 GB DDR4 3200 CL22 ECC load-reduced quad-rank kit of four 128 GB modules for compatible Supermicro server and workstation boards

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR4 ECC LRDIMM
  • SpeedDDR4 3200 (PC4 25600)
  • CAS LatencyCL22
  • Voltage1.2V
  • ECCYes

Capacity 512GB (4 x 128GB)

Doorgestreepte varianten bestaan wel, maar zijn hier niet op voorraad.

  • 512 GB total capacity for large server workloads
  • ECC load-reduced design protects data integrity in critical tasks
  • DDR4 3200 speed with CL22 latency for responsive performance
  • 2 V operation reduces power draw in dense configurations
  • Compatible with Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C, H12SSL-i

Server-grade ECC LRDIMM kit

This OWC kit delivers 512GB of DDR4 memory across four 128GB load-reduced DIMMs. It is built for Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C and H12SSL-i motherboards in workstation and server roles. The modules will not work in standard desktop systems and cannot be mixed with unbuffered or registered ECC memory.

Thermals and power at 1.2V

Each module operates at 1.2V with no heat spreader fitted, relying on chassis airflow for cooling. Load-reduced buffering lowers electrical load on the memory controller, helping keep power draw predictable under sustained server workloads. JEDEC-standard signalling at 3200MHz CL22 maintains stable operation without raising voltage.

288-pin LRDIMM installation

The 288-pin form factor seats in standard DDR4 server slots, and the four-module pack fills all channels on supported dual-socket boards. Backward compatibility with 2133, 2400, 2666 and 2933MHz buses allows deployment in older Supermicro platforms without BIOS changes. ECC load-reduced architecture protects data integrity in multi-threaded, mission-critical applications.

Pluspunten

  • 512 GB total capacity for large server workloads
  • ECC load-reduced design protects data integrity in critical tasks
  • DDR4 3200 speed with CL22 latency for responsive performance
  • 2 V operation reduces power draw in dense configurations
  • Compatible with Supermicro H12DSG-O-CPU, H12DST-B, H12DSU-iN, H12SSL-C, H12SSL-i

Specificaties

BrandOWC
Part Number3L2D44R4512S
Capacity512GB (4 x 128GB)
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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Vragen over dit artikel

How do I install the 288-pin LRDIMM modules on the Supermicro H12SSL-i and what step is often missed?

Power down the server, open the chassis, align each 288-pin module with the DDR4 slot key notch, press firmly until both retention clips click, then verify in BIOS that all four 128GB modules are detected at 3200MHz; the step often missed is confirming the motherboard is populated in the correct channel order for quad-channel operation.

What maintenance or replacement will the 4Rx4 ECC LRDIMM kit need over its service life?

The modules have no heat spreaders and no moving parts, so no routine maintenance is required; replacement would only be necessary if a module fails ECC correction or the server platform is upgraded beyond DDR4 3200 support.

What limit appears first when the 512GB kit runs sustained workloads at 1.2V?

The thermal limit of the unbuffered 1.2V LRDIMM packages typically appears before any electrical limit, because the 4Rx4 density generates more heat per module than lower-rank DIMMs under continuous load.

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