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Two green 240-pin DDR3L ECC registered RDIMM modules with gold contacts

OWC

OWC 32GB (2x16GB) DDR3L 1600 ECC Registered RDIMM memory upgrade Dell PowerEdge M420 M520 M620 M820 M915

SKU CH-0YMZ-RC5WS

32 GB dual-channel DDR3L 1600 ECC registered RDIMM kit for Dell PowerEdge M420, M520, M620, M820 and M915 servers

  • 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 servers
  • 32 GB kit (2×16 GB) expands Dell PowerEdge capacity
  • DDR3L 1600 CL11 speed matches system specifications
  • 35 V low-voltage modules reduce power draw
  • Validated for PowerEdge M420 M520 M620 M820 M915

Server Memory Upgrade

This 32 GB kit contains two 16 GB DDR3L 1600 registered ECC RDIMMs built for Dell PowerEdge M420, M520, M620, M820 and M915 blade servers. It targets administrators who need to expand capacity in those specific platforms without mixing registered and unbuffered modules.

Sustained Load Behaviour

Registered buffering and ECC correction maintain data integrity across continuous workloads typical of virtualisation hosts and database nodes. The 1.35 V DDR3L operation reduces thermal output compared to standard-voltage DDR3, helping stability in dense blade chassis.

Deciding Specification

The modules are 240-pin DDR3L registered ECC RDIMMs; they will not function in systems that require unbuffered non-ECC memory or a different pin count. Buyers whose servers demand UDIMM or a newer DDR generation must select a different part.

Highlights

  • ECC registered design protects data integrity in servers
  • 32 GB kit (2×16 GB) expands Dell PowerEdge capacity
  • DDR3L 1600 CL11 speed matches system specifications
  • 35 V low-voltage modules reduce power draw
  • Validated for PowerEdge M420 M520 M620 M820 M915

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 SystemDell PowerEdge M420
Dell PowerEdge M520
Dell PowerEdge M620
Dell PowerEdge M820
Dell PowerEdge M915

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Questions about this item

Does the 1.35 V DDR3L 1600 kit run cooler than standard 1.5 V DDR3 in a Dell PowerEdge M620 running 24/7?

The 1.35 V DDR3L modules draw less power than 1.5 V DDR3, so they generate less heat inside the M620 chassis during continuous operation.

My Dell PowerEdge M820 currently has unbuffered DIMMs — can I add this 2Rx4 registered kit alongside them?

No, the registered ECC DIMMs cannot be mixed with unbuffered memory; the M820 must use only registered modules.

Will the 240-pin CL11 registered DIMMs work in a Dell PowerEdge M420 that still has the original A6761613 modules installed?

Yes, this kit replaces Dell part numbers including A6761613, so it is compatible with the M420 when populated according to the server's memory-configuration rules.

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