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Four green DDR3L 240-pin RDIMM modules with gold contacts, no heat spreaders

OWC

OWC 64GB (4x16GB) DDR3L 1600 ECC RDIMM memory upgrade

SKU CH-PSJG-G5AHA

64GB DDR3L 1600 ECC registered kit of four 16GB modules for Cisco UCS B260 M4 and B460 M4 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
  • 64 GB kit (4 × 16 GB) maximises Cisco UCS capacity
  • DDR3L 1600 CL11 at 1.35 V lowers power draw
  • 240-pin RDIMM form factor fits B260 M4 and B460 M4 slots
  • Replaces Cisco UCSMR part numbers for direct upgrade

OWC 64GB DDR3L 1600 ECC RDIMM kit

This 64GB kit contains four 16GB DDR3L 1600 registered DIMMs with ECC and a CL11 latency. Modules run at 1.35V and use the 240-pin form factor with a 2Rx4 organisation. The kit is validated for Cisco UCS B260 M4 and B460 M4 servers using E7 v2 and v3 processors.

Suited for Cisco UCS B260 M4 and B460 M4 upgrades

This memory fits only systems that accept DDR3L 1600 registered ECC RDIMMs at 1.35V. It will not work in standard desktops, consumer laptops or any platform that requires unbuffered or load-reduced DIMMs. Builders needing non-ECC or higher-speed modules should look elsewhere.

Registered ECC with 2Rx4 organisation

The modules are registered ECC with a 2Rx4 rank structure, a requirement for the target Cisco UCS platforms. Mixing these with unbuffered or load-reduced memory is not supported. Verify that your server requires registered ECC RDIMMs before ordering.

Points forts

  • ECC registered design protects data integrity in servers
  • 64 GB kit (4 × 16 GB) maximises Cisco UCS capacity
  • DDR3L 1600 CL11 at 1.35 V lowers power draw
  • 240-pin RDIMM form factor fits B260 M4 and B460 M4 slots
  • Replaces Cisco UCSMR part numbers for direct upgrade

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 B260 M4 E7 v2 & v3
Cisco UCS B460 M4 E7 v2 & v3

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Questions sur cet article

How do I install the 240-pin DDR3L 1600 RDIMMs in a Cisco UCS B260 M4, and what step is often missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until both ejector clips click, then verify in BIOS that all 64 GB are detected at 1600 MHz CL11.

What maintenance or replacement will the 1.35 V ECC registered kit need over its service life?

The modules have no moving parts and no heat spreaders; only periodic dust removal from the DIMM slots is required, and a failed stick would be replaced individually under the manufacturer's limited lifetime warranty.

What limit appears first when the 2Rx4 RDIMMs run sustained workloads in a B460 M4?

The registered buffer and ECC logic add one cycle of latency, so memory-controller throughput saturates before the 1600 MT/s data rate or 1.35 V thermal envelope becomes a bottleneck.

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