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Green rectangular circuit board with gold edge connectors and black memory chips

OWC

OWC 32GB DDR4 2933MHz ECC RDIMM CL21 1.2V 288pin Server Memory Upgrade

SKU CH-PKBK-4DQQP

32GB DDR4 2933MHz ECC registered RDIMM for Lenovo ThinkSystem SR530, SR550, SR570, SR590 and SR670 servers

  • Total capacity32 GB
  • Rated speedDDR4 2933 (PC4 23400)
  • CAS latencyCL21
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank2Rx4

Capacity 32GB

  • 32GB capacity expands server memory for larger workloads
  • DDR4 2933MHz CL21 speed handles demanding data tasks
  • ECC registered design protects data integrity in critical systems
  • 2V operation reduces power draw and heat output
  • Validated for Lenovo ThinkSystem SR530 SR550 SR570 SR590 SR670

32GB ECC Registered DDR4 for Lenovo ThinkSystem

This 32GB DDR4 2933MHz ECC registered DIMM is built for Lenovo ThinkSystem servers based on Xeon SP Gen 2 platforms. It targets administrators who need error-correcting, registered memory to maintain data integrity in SR530, SR550, SR570, SR590 or SR670 systems.

Fits 288-pin DDR4 slots in compatible ThinkSystem

The module plugs directly into 288-pin DDR4 slots and operates at 1.2V with CL21 latency. It requires a platform that supports ECC registered memory and cannot be mixed with unbuffered modules. Backward compatibility with 2133MHz, 2400MHz and 2666MHz speeds lets it slot into existing configurations without BIOS changes.

Runs at standard 1.2V with no heat spreader

The module draws 1.2V and has no integrated heat spreader, so airflow across the DIMM slots handles cooling. Registered buffering adds a small electrical load but keeps signal integrity stable under sustained server workloads. Power draw and acoustic contribution remain negligible in a properly ventilated chassis.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $200.99
Cheaper than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $6.28 per GB
Cheaper than about 63% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R9D42R432 GB
Total capacity32 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2933 (PC4 23400)
Memory
CAS latencyCL21
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.2 V

Other versions of this model

5 more in the same range

Questions about this item

Will the 1.2V operating voltage limit performance during sustained server workloads?

The module runs at the standard DDR4 1.2V, which is the JEDEC voltage for 2933MHz operation. No higher voltage is required to reach the rated speed.

How much heat does the 2Rx4 registered DIMM produce when running all day in a ThinkSystem SR550?

The module has no heat spreader and operates at 1.2V. Registered ECC DIMMs of this density typically stay within normal server thermal limits when system airflow is adequate.

Which Lenovo ThinkSystem models must I already own for this 288-pin DDR4 RDIMM to work?

Compatible systems are the ThinkSystem SR530, SR550, SR570, SR590 and SR670 with Xeon SP Gen 2 processors.

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