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Four green DDR3L ECC registered DIMMs, 240-pin, no heat spreaders

OWC

OWC 64GB (4x16GB) DDR3L 1600 CL11 ECC RDIMM 2Rx4 1.35V memory upgrade

SKU CH-K6SB-NMDQE

64 GB DDR3L ECC registered memory kit with four 16 GB modules at 1600 MHz CL11 for compatible Supermicro server boards

  • 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
  • DDR3L 1600 speed with CL11 latency for responsive workloads
  • Low 1.35 V voltage reduces power draw and heat
  • 64 GB kit (4 × 16 GB) expands capacity for virtualization
  • Validated for Supermicro H8DCT, H8DG6, H8DGT, H8DGU, H8QG7 motherboards

Targeted Server Upgrade

This 64 GB kit comprises four 16 GB DDR3L 1600 registered ECC DIMMs built for Supermicro H8DCT, H8DG6, H8DGT, H8DGU and H8QG7 motherboards. The modules run at 1.35 V with CL11 latency and a 2Rx4 organisation. They are designed for workstation and server platforms that require registered memory and will not function in standard desktop systems or alongside unbuffered DIMMs.

Sustained Load Behaviour

Under continuous operation the ECC circuitry detects and corrects single-bit errors, preserving data integrity during long compute or storage tasks. Registered buffering reduces electrical loading on the memory controller, allowing all four modules to maintain stable timing at the rated 1600 MT/s speed. The kit is validated for 24/7 duty in compatible Supermicro platforms.

Thermals Noise And Power

Operating at the JEDEC low-voltage specification of 1.35 V, the modules draw less power than standard DDR3 equivalents, reducing heat output inside dense server chassis. No heat spreaders are fitted, so airflow across the bare PCB handles cooling silently. The lower voltage also eases demand on the system power budget during prolonged workloads.

Highlights

  • ECC registered design protects data integrity in servers
  • DDR3L 1600 speed with CL11 latency for responsive workloads
  • Low 1.35 V voltage reduces power draw and heat
  • 64 GB kit (4 × 16 GB) expands capacity for virtualization
  • Validated for Supermicro H8DCT, H8DG6, H8DGT, H8DGU, H8QG7 motherboards

Specifications

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 SystemSupermicro Motherboard H8DCT Series
Supermicro Motherboard H8DG6 Series
Supermicro Motherboard H8DGT Series
Supermicro Motherboard H8DGU Series
Supermicro Motherboard H8QG7 Series

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Questions about this item

How much power does each 16GB DDR3L 1600 CL11 module draw at 1.35V during continuous server operation?

Each registered DIMM runs at 1.35V, which is lower than standard DDR3, reducing heat output in 24/7 workloads.

What motherboard slot type and chipset support are required to use this 240-pin ECC registered kit?

A Supermicro H8DCT, H8DG6, H8DGT, H8DGU or H8QG7 motherboard with 240-pin DDR3L RDIMM slots and registered-ECC support is required.

Can these 2Rx4 registered modules be installed alongside existing unbuffered DDR3L DIMMs in the same Supermicro system?

No — the manufacturer states registered ECC memory cannot be mixed with unbuffered memory; all slots must use registered modules.

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