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Two green DDR3L ECC registered DIMMs with gold contacts

OWC

OWC 32GB (2x16GB) DDR3L 1600 ECC RDIMM 1R6T32R4032P

SKU CH-7GWF-1GMSR

A 32 GB DDR3L 1600 ECC registered DIMM kit for Supermicro SuperServer 4047, 4048, 5017 and 5027 systems

  • Capacity32GB (2 x 16GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 32GB (2 x 16GB)

  • ECC registered design protects data integrity in server workloads
  • 32GB kit (2×16GB) expands capacity for virtualisation and databases
  • DDR3L 1600 CL11 at 1.35V lowers power draw versus standard DDR3
  • 240-pin RDIMM form factor fits listed Supermicro SuperServer models
  • 2Rx4 dual-rank organisation maximises memory bandwidth per channel

System-specific DDR3L server upgrade

This OWC kit supplies 32 GB of DDR3L 1600 ECC registered memory in a matched pair of 16 GB modules. It is built for Supermicro SuperServer 4047R, 4048B, 5017GR, 5017R and 5027R platforms that require registered DIMMs with error correction. The modules run at 1.35 V and carry a CL11 latency rating. This memory is not compatible with standard desktop computers or unbuffered DIMM slots.

Registered ECC changes system behaviour

Registered buffering reduces electrical load on the memory controller, allowing the server to populate more slots than unbuffered memory would permit. ECC detects and corrects single-bit errors, protecting data integrity in always-on workloads. The two-module kit enables dual-channel operation on supported boards, increasing throughput compared with a single DIMM. No heat spreaders are fitted, so airflow across the modules must be maintained by the chassis design.

Verify slot type and population rules

Confirm that your SuperServer model lists DDR3L 240-pin RDIMM support and that the BIOS revision recognises 16 GB registered modules. Registered memory cannot be mixed with unbuffered DIMMs in the same channel, so remove any existing unbuffered sticks before installation. Check the server documentation for maximum capacity per channel and approved population sequences to avoid POST failures. This kit is not suited for systems that require unbuffered or non-ECC memory.

Highlights

  • ECC registered design protects data integrity in server workloads
  • 32GB kit (2×16GB) expands capacity for virtualisation and databases
  • DDR3L 1600 CL11 at 1.35V lowers power draw versus standard DDR3
  • 240-pin RDIMM form factor fits listed Supermicro SuperServer models
  • 2Rx4 dual-rank organisation maximises memory bandwidth per channel

Specifications

BrandOWC
Part Number1R6T32R4032P
Capacity32GB (2 x 16GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro SuperServer 4047R Series
Supermicro SuperServer 4048B Series
Supermicro SuperServer 5017GR Series
Supermicro SuperServer 5017R Series
Supermicro SuperServer 5027R Series

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Questions about this item

Will the registered ECC DIMMs need any firmware updates or periodic replacement?

The modules are built to JEDEC DDR3L standards and carry a limited lifetime warranty; no firmware updates or scheduled replacement are required under normal server operation.

What limits sustained throughput on these 2Rx4 modules running at CL11?

The DDR3L 1600 PC3L-12800 interface caps peak bandwidth at 12 800 MB/s per module, so the memory bus becomes the bottleneck before the 2Rx4 rank organisation does.

How much extra heat and power do two 1.35 V registered DIMMs add to a Supermicro chassis running 24/7?

Each 16 GB stick draws 1.35 V at DDR3L 1600 speeds; the registered buffer adds minimal overhead, so total power stays well within standard 240-pin DIMM thermal limits for continuous operation.

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