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Eight green DDR3L ECC registered DIMMs in anti-static bags

OWC

OWC 64GB (8x8GB) DDR3L 1600 CL11 ECC Registered RDIMM 240-pin 1.35V 2Rx4 memory upgrade

SKU CH-CNA6-DGEKF

Eight-module 64 GB DDR3L 1600 ECC registered RDIMM kit for Cisco UCS C24 M3, C240 M3 and C420 M3 servers

  • Capacity64GB (8 x 8GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 64GB (8 x 8GB)

  • ECC registered design protects data integrity in servers
  • DDR3L 1600 CL11 at 1.35V lowers power draw
  • 64GB kit with eight 8GB modules maximises capacity
  • Qualified for Cisco UCS C24 M3 C240 M3 C420 M3
  • 240-pin 2Rx4 RDIMM form factor fits registered DIMM slots

Server memory kit for Cisco UCS

This 64GB kit contains eight 8GB DDR3L registered DIMMs built for Cisco UCS C24 M3, C240 M3 and C420 M3 servers. It delivers ECC error correction and registered buffering required by those platforms and will not work in standard desktop computers. The modules replace Cisco part numbers UCSMR1X082RYA, UCSMR2X082RYB and UCSMR2X082RYE.

Low-voltage operation at 1.35V

Each module runs at DDR3L 1600 (PC3L-12800) with CL11 latency while drawing only 1.35V. The reduced voltage lowers power consumption and heat output compared with standard DDR3, helping dense server configurations stay within thermal limits. No heat spreaders are fitted, so airflow through the chassis handles cooling directly.

240-pin registered DIMM form factor

The 240-pin RDIMM design matches the memory slots in the listed Cisco UCS models and supports the 2Rx4 rank organisation. Mixing these registered modules with unbuffered or load-reduced memory is not supported. The kit provides a direct upgrade path for the specified servers without requiring firmware changes or additional hardware.

Points forts

  • ECC registered design protects data integrity in servers
  • DDR3L 1600 CL11 at 1.35V lowers power draw
  • 64GB kit with eight 8GB modules maximises capacity
  • Qualified for Cisco UCS C24 M3 C240 M3 C420 M3
  • 240-pin 2Rx4 RDIMM form factor fits registered DIMM slots

Caractéristiques

BrandOWC
Part Number1R6T32R4064K
Capacity64GB (8 x 8GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS C24 M3
Cisco UCS C240 M3
Cisco UCS C420 M3

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Questions sur cet article

How do I install the 240-pin DDR3L RDIMM kit in a Cisco UCS C240 M3, and what step do people often get wrong?

Power down the server, open the chassis, align each module's notch with the slot key, and press firmly until both latches click; the step most often missed is seating all eight modules in the correct channel order so the C240 M3 sees the full 64 GB.

What maintenance or replacement will the 8x8 GB ECC Registered kit need later?

The modules have no heat spreaders and no moving parts, so no routine maintenance is required; if a DIMM fails, replace only the faulty 8 GB stick with another DDR3L 1600 CL11 2Rx4 1.35 V registered module to keep ECC protection intact.

What limit shows up first when the 64 GB kit runs sustained workloads in a Cisco UCS C420 M3?

The DDR3L 1600 CL11 1.35 V specification caps memory bandwidth at PC3L-12800 speeds, so throughput ceiling appears before thermal or voltage limits under continuous load.

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