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Four green DDR3L RDIMM sticks with gold contacts

OWC

OWC 32GB (4x8GB) DDR3L 1600 CL11 ECC Registered RDIMM 1Rx4 1.35V memory upgrade

SKU CH-3QP4-588T4

32 GB DDR3L 1600 CL11 ECC registered RDIMM kit for Lenovo ThinkServer RD330, RD340, RD430, RD440 and RD530

  • Capacity32GB (4 x 8GB)
  • Type240-Pin DDR3L ECC RDIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Voltage1.35V
  • ECCYes

Capacity 32GB (4 x 8GB)

  • ECC registered design protects data integrity in servers
  • 32GB kit (4×8GB) expands ThinkServer memory capacity
  • DDR3L 1600 CL11 matches factory speed and latency
  • 35V low-voltage modules reduce power draw and heat
  • Validated for Lenovo ThinkServer RD330, RD340, RD430, RD440, RD530

Server memory upgrade for Lenovo ThinkServer

This 32 GB kit contains four 8 GB DDR3L 1600 registered ECC DIMMs built for Lenovo ThinkServer RD330, RD340, RD430, RD440 and RD530 systems. Each module runs at PC3L-12800 with CL11 latency and 1.35 V. The registered design and ECC support are required by these servers and will not work in standard desktop boards.

Sustained-load behaviour in server workloads

Registered buffering reduces electrical load on the memory controller, allowing all four DIMMs to operate at the rated 1600 MT/s continuously. ECC corrects single-bit errors on the fly, preventing data corruption during long compute jobs or virtualization tasks. The 1Rx4 organization keeps signal integrity stable across full channels.

Thermals noise and power draw

Modules run at the low-voltage 1.35 V DDR3L standard, lowering power consumption compared with 1.5 V DDR3. No heat spreaders are fitted, relying on the server’s directed airflow for cooling. Passive operation adds no acoustic noise, and the reduced voltage helps keep chassis temperatures within design limits during 24/7 service.

Puntos fuertes

  • ECC registered design protects data integrity in servers
  • 32GB kit (4×8GB) expands ThinkServer memory capacity
  • DDR3L 1600 CL11 matches factory speed and latency
  • 35V low-voltage modules reduce power draw and heat
  • Validated for Lenovo ThinkServer RD330, RD340, RD430, RD440, RD530

Especificaciones

BrandOWC
Part Number1R6T31R4032S
Capacity32GB (4 x 8GB)
Type240-Pin DDR3L ECC RDIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Voltage1.35V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Heat SpreaderNo
Compatible SystemLenovo ThinkServer RD330
Lenovo ThinkServer RD340
Lenovo ThinkServer RD430
Lenovo ThinkServer RD440
Lenovo ThinkServer RD530

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Preguntas sobre este artículo

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

Each module operates at 1.35 V, lower than standard DDR3, reducing heat output during all-day workloads in ThinkServer RD330, RD340, RD430, RD440 and RD530 systems.

What must the motherboard already support for these registered ECC DIMMs to function?

The board must accept 240-pin DDR3L registered ECC memory; this kit will not work with unbuffered or non-ECC slots found in standard desktops.

Can I keep my existing Lenovo 00D5035 or 46W0771 modules and add this 32 GB kit alongside them?

Mixing registered ECC with unbuffered memory is not supported; all slots must use registered ECC DIMMs for the server to boot reliably.

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