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Four green DDR3L ECC registered DIMMs in anti-static tray

OWC

OWC 64GB (4x16GB) DDR3L 1600 ECC RDIMM Memory Upgrade Kit

SKU CH-W8QM-47QE9

64 GB DDR3L ECC registered kit with four 16 GB modules at 1600 MHz for Cisco UCS C24 M3, C240 M3 and C420 M3 servers

  • Capacity64GB (4 x 16GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in servers
  • 64GB kit with four 16GB modules expands capacity
  • DDR3L 1600 CL11 at 1.35V reduces power draw
  • 240-pin RDIMM form factor fits Cisco UCS C24 M3 C240 M3 C420 M3
  • Replaces Cisco part numbers UCSMR1X162RYA UCSMR1X162RYARF UCSMR2X162RYE

Target Server Platforms

This 64GB kit contains four 16GB DDR3L 1600 registered ECC modules built for Cisco UCS C24 M3, C240 M3 and C420 M3 servers. It is designed for administrators who need to maximise memory capacity on these specific platforms. The kit will not work in standard desktop computers or in systems that require unbuffered or load-reduced DIMMs. Mixing with other memory types is not supported.

Installation Notes

Each module uses the 240-pin DDR3L form factor and installs like any registered DIMM; align the key notch and press until the retention clips lock. Because the modules are registered ECC, the server BIOS must support registered memory and the population rules for the Cisco UCS models listed. Using unbuffered or load-reduced DIMMs in the same system will prevent boot.

Sustained Operation

The modules run at 1.35V with CL11 latency and a 2Rx4 organisation, delivering steady throughput under continuous server workloads. ECC correction handles single-bit errors without interruption, while the registered buffer reduces electrical load on the memory controller during extended use. No heat spreader is fitted, so adequate chassis airflow is required to maintain rated performance over long periods.

Points forts

  • ECC registered design protects data integrity in servers
  • 64GB kit with four 16GB modules expands capacity
  • DDR3L 1600 CL11 at 1.35V reduces power draw
  • 240-pin RDIMM form factor fits Cisco UCS C24 M3 C240 M3 C420 M3
  • Replaces Cisco part numbers UCSMR1X162RYA UCSMR1X162RYARF UCSMR2X162RYE

Caractéristiques

BrandOWC
Part Number1R6T32R4064S
Capacity64GB (4 x 16GB)
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 can I verify the kit is running at 1600 MHz with CL11 latency after installation?

Enter the server BIOS or use a tool such as CPU-Z to confirm the memory operates at DDR3L 1600 (PC3L-12800) with CAS latency 11 and 1.35 V.

What does the 64 GB kit contain and are any extra parts required?

The kit includes four 16 GB DDR3L ECC Registered 240-pin RDIMM modules; no additional components are needed for the listed Cisco UCS servers.

Which capacity should I choose for a Cisco UCS C240 M3 that supports 24 DIMM slots?

This 64 GB (4 × 16 GB) kit fills four slots; add more identical kits to reach the platform maximum.

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