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Two green DDR3L ECC RDIMM modules, 240-pin, no heat spreaders

OWC

OWC 64GB (2x32GB) DDR3L 1600 PC3L-12800 CL11 4Rx4 ECC RDIMM memory upgrade

SKU CH-ZQ88-MS1W1

64 GB DDR3L 1600 ECC registered kit for Dell PowerEdge R520, R620, R715, R720 and R720xd servers

  • Capacity64GB (2 x 32GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 64GB (2 x 32GB)

  • ECC registered design protects data integrity in servers
  • 64GB kit with two 32GB modules maximises capacity
  • DDR3L 1600 CL11 at 1.35V matches Dell PowerEdge specs
  • 240-pin RDIMM form factor fits R520 R620 R715 R720 R720xd
  • JEDEC and RoHS compliant for warranty-safe upgrades

ECC Registered DDR3L Kit

This OWC kit supplies 64 GB of DDR3L memory as two 32 GB registered DIMMs. It is built for Dell PowerEdge R520, R620, R715, R720 and R720xd servers that require ECC registered modules. Standard desktop systems cannot use this memory.

DDR3L 1600 Registered Limits

The modules run at 1600 MHz with CL11 latency at 1.35 V, matching the PC3L-12800 JEDEC standard. Registered buffering and 4Rx4 organisation add electrical load, so the platform chipset and BIOS must explicitly support registered ECC DIMMs. Mixing with unbuffered memory will prevent the system from booting.

64 GB Capacity And Headroom

Two 32 GB DIMMs populate two slots, leaving additional slots free for further expansion if the server supports more than 64 GB. The kit suits virtualization workloads and large database caches that benefit from registered ECC stability. Servers needing more than two DIMMs per channel or higher frequencies will exceed what this DDR3L generation can deliver.

Highlights

  • ECC registered design protects data integrity in servers
  • 64GB kit with two 32GB modules maximises capacity
  • DDR3L 1600 CL11 at 1.35V matches Dell PowerEdge specs
  • 240-pin RDIMM form factor fits R520 R620 R715 R720 R720xd
  • JEDEC and RoHS compliant for warranty-safe upgrades

Specifications

BrandOWC
Part Number1R6T34R4064P
Capacity64GB (2 x 32GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
Heat SpreaderNo
Compatible SystemDell PowerEdge R520
Dell PowerEdge R620
Dell PowerEdge R715
Dell PowerEdge R720
Dell PowerEdge R720xd

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Questions about this item

Should I choose the 64GB kit or buy single 32GB modules instead?

The kit provides two matched 32GB modules for a total of 64GB, ensuring dual-channel operation and balanced ranks across both channels.

What does the 1600MHz rating deliver in a Dell PowerEdge server?

The modules run at DDR3L 1600 with CL11 latency, providing 12800 MB/s peak bandwidth per module when the platform memory controller is set to 1600 MT/s.

Does the 240-pin DDR3L interface limit speed or capacity in these servers?

The 240-pin DDR3L RDIMM form factor is the native slot type for the listed PowerEdge models, so the 1600MHz speed and 32GB per module capacity are fully supported.

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