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Two green 240-pin DDR3L ECC registered DIMMs in anti-static tray

OWC

OWC 16GB (2x8GB) DDR3L 1333 ECC Registered RDIMM for Cisco UCS B440 M2

SKU CH-E3BS-3W64M

16 GB DDR3L 1333 ECC registered RDIMM kit for Cisco UCS B440 M2 servers

  • Capacity16GB (2 x 8GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1333 (PC3L 10600)
  • CAS LatencyCL9
  • Voltage1.35V
  • ECCYes

Capacity 16GB (2 x 8GB)

  • ECC registered design protects data integrity in servers
  • 16 GB kit (2 × 8 GB) expands Cisco UCS B440 M2 memory
  • DDR3L 1333 MHz CL9 matches system specifications
  • 35 V DDR3L lowers power draw versus standard DDR3
  • Replaces Cisco part numbers N01M308GB2, UCSMR1X082RXA, UCSMR2X082RXB, UCSMR2X082RXC

Cisco UCS B440 M2 Memory Kit

This OWC kit supplies 16 GB of DDR3L ECC registered memory in two 8 GB modules built for the Cisco UCS B440 M2 blade server. The modules run at 1333 MHz with CL9 latency and 1.35 V operation. Registered buffering and on-die error correction keep data integrity high in multi-socket server workloads.

Sustained Load Behaviour

Registered DIMMs reduce electrical load on the memory controller, allowing the B440 M2 to maintain stable throughput during long compute jobs or virtualisation tasks. ECC detects and corrects single-bit errors on the fly, preventing silent data corruption that can accumulate over extended run times.

Build and Connector Details

Each module uses a standard 240-pin DDR3L form factor without a heat spreader, fitting the blade’s low-profile DIMM slots. The 2Rx4 organisation matches Cisco part numbers N01M308GB2, UCSMR1X082RXA, UCSMR2X082RXB and UCSMR2X082RXC for direct replacement. This memory is not compatible with standard desktop platforms or unbuffered and load-reduced DIMM types.

Points forts

  • ECC registered design protects data integrity in servers
  • 16 GB kit (2 × 8 GB) expands Cisco UCS B440 M2 memory
  • DDR3L 1333 MHz CL9 matches system specifications
  • 35 V DDR3L lowers power draw versus standard DDR3
  • Replaces Cisco part numbers N01M308GB2, UCSMR1X082RXA, UCSMR2X082RXB, UCSMR2X082RXC

Caractéristiques

BrandOWC
Part Number1R3T32R4016P
Capacity16GB (2 x 8GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1333 (PC3L 10600)
CAS LatencyCL9
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemCisco UCS B440 M2

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Questions sur cet article

How much power does the 1.35V DDR3L kit draw when the Cisco UCS B440 M2 runs all day?

Each module operates at 1.35V, lower than standard DDR3, reducing heat and power draw during continuous server workloads.

What must the Cisco UCS B440 M2 already have for this 240-pin ECC Registered RDIMM kit to work?

The server must support DDR3L 1333 ECC Registered memory and provide free 240-pin DIMM slots; it cannot accept unbuffered or load-reduced modules.

Can I keep older DDR3L 1333 ECC Registered DIMMs installed alongside this 2Rx4 kit in the same B440 M2?

Yes, provided the existing modules are also DDR3L 1333 ECC Registered; mixing with unbuffered or load-reduced memory is not supported.

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