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Four green DDR3 ECC registered DIMMs in static bags

OWC

OWC 64GB (4x16GB) DDR3 1600 ECC Registered RDIMM 1R6D32R4064S

SKU CH-0MJ9-SEE8J

Four 16 GB DDR3 1600 ECC registered RDIMMs add 64 GB to Supermicro SuperServer 1027GR systems

  • Capacity64GB (4 x 16GB)
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCYes

Capacity 64GB (4 x 16GB)

  • ECC registered design protects data integrity in servers
  • 64GB kit with four 16GB modules expands capacity
  • DDR3 1600 CL11 speed matches system requirements
  • 5V operation keeps power draw low
  • Validated for Supermicro SuperServer 1027GR series

Server ECC RDIMM kit

This OWC kit supplies 64 GB of DDR3 1600 registered ECC memory across four 16 GB modules. It is built for Supermicro SuperServer 1027GR systems that require 240-pin RDIMMs. The kit will not work in standard desktop motherboards or with unbuffered DIMMs. Buyers who need consumer DDR3 or non-ECC memory should look elsewhere.

Registered ECC specification

The decisive specification is the registered ECC design with 2Rx4 organisation and CL11 latency at 1.5 V. Only platforms that explicitly support registered DDR3 ECC RDIMMs can use this kit. Systems limited to unbuffered memory or a different DDR generation cannot accept these modules.

Matched four-module kit

The four matched 16 GB modules let the server populate a full channel set for maximum capacity without mixing ranks. No additional accessories or software are included in the package. Buyers who need a different capacity or a smaller module count must choose another kit.

Highlights

  • ECC registered design protects data integrity in servers
  • 64GB kit with four 16GB modules expands capacity
  • DDR3 1600 CL11 speed matches system requirements
  • 5V operation keeps power draw low
  • Validated for Supermicro SuperServer 1027GR series

Specifications

BrandOWC
Part Number1R6D32R4064S
Capacity64GB (4 x 16GB)
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo
Compatible SystemSupermicro SuperServer 1027GR Series

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Questions about this item

What does the CL11 timing mean once the modules are installed in a Supermicro SuperServer 1027GR?

CL11 is the CAS latency at DDR3 1600; the server's memory controller will run the kit at this timing when the DIMMs are populated according to the system's population rules.

What does the PC3-12800 rating cap in practice on this registered ECC kit?

PC3-12800 sets the data rate at 1600 MT/s; actual bandwidth is limited by the 1027GR's memory controller and the number of channels populated.

What physical slot and clearance do these 240-pin RDIMMs need in the 1027GR chassis?

They require standard 240-pin DDR3 DIMM sockets; the modules have no heat spreader, so they fit in the 1027GR's dense DIMM layout without extra height clearance.

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