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Two green 240-pin DDR3L ECC registered DIMMs, no heat spreader

OWC

OWC 1R6T31R4016P 16GB DDR3L 1600 ECC RDIMM 2x8GB 1.35V CL11 1Rx4 SuperServer

SKU CH-M5YS-ANFWK

16GB DDR3L 1600 ECC registered kit for Supermicro SuperServer 2027, 2028 and 4027 series

  • Capacity16GB (2 x 8GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 16GB (2 x 8GB)

  • ECC registered design protects data integrity in server workloads
  • 16GB kit (2 x 8GB) expands capacity for virtualisation and databases
  • DDR3L 1600 CL11 at 1.35V lowers power draw versus standard DDR3
  • Validated for Supermicro SuperServer 2027, 2028 and 4027 series
  • 240-pin RDIMM form factor fits registered DIMM slots only

Kit identity

This kit provides 16GB of DDR3L ECC Registered memory in a matched pair of 8GB modules. It is built for Supermicro SuperServer platforms including the 2027PR, 2027R, 2027TR, 2028UT and 4027GR series. The registered design and ECC function target server and workstation workloads that demand data integrity. It will not operate in standard desktop systems or alongside unbuffered DIMMs.

Sustained behaviour

Each module runs at 1600MHz with CL11 timing at 1.35V, delivering PC3L-12800 bandwidth continuously. The registered buffer reduces electrical load on the memory controller, helping stability when all slots are populated. ECC correction operates on every cycle, preventing silent data corruption during long compute jobs or virtualisation tasks. The 1Rx4 organisation supports dense capacity per channel without increasing rank count.

Interface limits

The 240-pin DDR3L interface caps transfer rates at 1600MHz and requires a platform that accepts registered ECC DIMMs at 1.35V. Mixing with unbuffered memory is not supported and will prevent boot. Capacity expansion is bounded by the server model's maximum DIMM count and total memory limit. This kit replaces Supermicro part numbers MEMDR380LHL07ER16, MEMDR380LSL10ER16, MEMDR380LSL14ER16 and MEMDR380LSV04ER16.

Points forts

  • ECC registered design protects data integrity in server workloads
  • 16GB kit (2 x 8GB) expands capacity for virtualisation and databases
  • DDR3L 1600 CL11 at 1.35V lowers power draw versus standard DDR3
  • Validated for Supermicro SuperServer 2027, 2028 and 4027 series
  • 240-pin RDIMM form factor fits registered DIMM slots only

Caractéristiques

BrandOWC
Part Number1R6T31R4016P
Capacity16GB (2 x 8GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Compatible SystemSupermicro SuperServer 2027PR Series
Supermicro SuperServer 2027R Series
Supermicro SuperServer 2027TR Series
Supermicro SuperServer 2028UT Series
Supermicro SuperServer 4027GR Series

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Questions sur cet article

How much power does the 1.35V DDR3L kit draw when the server runs continuously?

Each module operates at 1.35V, lower than standard DDR3, reducing heat and power draw during 24/7 server workloads.

What must the Supermicro chassis already provide for these 240-pin RDIMMs to function?

The board needs DDR3L ECC registered DIMM slots and a memory controller that supports 1Rx4 PC3L-12800 CL11 modules.

Can I keep the existing Supermicro MEMDR380LHL07ER16 sticks and add this OWC kit beside them?

Yes, this kit replaces those exact part numbers, so matching speed, voltage, rank and ECC type allows mixed population.

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