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Four green DDR3L ECC LRDIMM modules, 240-pin, no heat spreaders

OWC

OWC 128GB (4x32GB) DDR3L 1600 PC3L-12800 CL11 4Rx4 240-pin 1.35V ECC LRDIMM memory upgrade

SKU CH-3RZC-QHE91

128 GB DDR3L 1600 ECC LRDIMM kit (4 × 32 GB) validated for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 servers

  • Capacity128GB (4 x 32GB)
  • Type240-Pin DDR3L ECC LRDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 128GB (4 x 32GB)

  • 128GB kit (4×32GB) expands Cisco UCS server capacity
  • DDR3L 1600 speed at CL11 latency boosts throughput
  • 35V low-voltage operation cuts power draw
  • ECC load-reduced DIMMs protect data integrity under load
  • Validated for Cisco UCS B200 M3 B22 M3 B420 M3 C22 M3 C220 M3

Target systems

This kit is built for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 servers. It delivers 128 GB across four 32 GB DDR3L ECC Load-Reduced DIMMs running at 1600 MT/s with CL11 latency. The modules operate at 1.35 V and use a 240-pin 4Rx4 layout. They are not compatible with standard desktop computers or with unbuffered or registered ECC memory.

Build integration

Each module fits a 240-pin DDR3L slot and requires a platform that supports Load-Reduced ECC memory. The kit replaces Cisco part numbers UCSML1X324RYA, UCS-ML-1X324RZ-A and UCSML2X324RYE. Because Load-Reduced DIMMs cannot be mixed with unbuffered or registered ECC types, all slots in a channel should use matching modules. No heat spreader is fitted, so airflow in the server chassis handles cooling.

Capacity and headroom

The 128 GB total capacity suits virtualization hosts, database nodes and compute-heavy workloads that benefit from large memory footprints. ECC and Load-Reduced architecture maintain data integrity and signal stability at this density. Workloads that exceed 128 GB or require a different memory generation will need a platform change.

Puntos fuertes

  • 128GB kit (4×32GB) expands Cisco UCS server capacity
  • DDR3L 1600 speed at CL11 latency boosts throughput
  • 35V low-voltage operation cuts power draw
  • ECC load-reduced DIMMs protect data integrity under load
  • Validated for Cisco UCS B200 M3 B22 M3 B420 M3 C22 M3 C220 M3

Especificaciones

BrandOWC
Part Number1L6T34R4128S
Capacity128GB (4 x 32GB)
Type240-Pin DDR3L ECC LRDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B200 M3
Cisco UCS B22 M3
Cisco UCS B420 M3
Cisco UCS C22 M3
Cisco UCS C220 M3

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Preguntas sobre este artículo

How much memory bandwidth does the DDR3L 1600 PC3L-12800 kit deliver under sustained load?

Each module runs at 1600 MT/s for a peak bandwidth of 12800 MB/s per DIMM, so the four-module kit provides that rate across all channels when the server memory controller is fully populated.

What thermal load should I expect from the 1.35 V ECC LRDIMMs running continuously in a Cisco UCS chassis?

The low-voltage 1.35 V DDR3L modules draw less power than standard 1.5 V DIMMs, and the load-reduced buffer cuts electrical loading on the memory bus, helping keep temperatures manageable in densely packed Cisco UCS blades.

Which Cisco UCS servers must I already own to install this 4 x 32 GB LRDIMM kit?

The kit is validated for Cisco UCS B200 M3, B22 M3, B420 M3, C22 M3 and C220 M3 systems; it replaces Cisco part numbers UCSML1X324RYA, UCS-ML-1X324RZ-A and UCSML2X324RYE.

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