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Green rectangular circuit board with gold edge connector and black memory chips, no heat spreader

OWC

OWC 8GB DDR4 2133MHz PC4-17000 CL15 1.2V 288pin ECC Registered RDIMM memory upgrade

SKU CH-EK0Z-M4BXQ

Adds 8 GB of DDR4 ECC registered memory at 2133 MHz for Lenovo ThinkStation P500, P700 and P900 workstations

  • Total capacity8 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • CAS latencyCL15
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx8
  • ECC protection prevents data errors in critical workloads
  • Registered buffering stabilises signal integrity for dense server configurations
  • 2V operation reduces power draw and heat output
  • JEDEC-compliant design ensures reliable compatibility with Lenovo ThinkStation P500 P700 P900
  • Single-rank 1Rx8 layout simplifies memory population rules

OWC 8GB DDR4 ECC RDIMM for Lenovo ThinkStation

This 8GB DDR4 2133MHz PC4-17000 CL15 1.2V 288-pin ECC Registered RDIMM is built for Lenovo ThinkStation P500, P700 and P900 workstations. It meets JEDEC standards and carries ROHS compliance. The module uses a 1Rx8 rank configuration without a heat spreader.

Suited for ECC registered workstations and servers

This memory fits users upgrading or repairing the listed ThinkStation models where ECC Registered DIMMs are required. It will not work in standard desktop computers that need unbuffered non-ECC modules. Buyers who need unbuffered memory or a different form factor should look elsewhere.

Straightforward DIMM installation with one key rule

Install by seating the 288-pin module firmly into the correct DDR4 slot until the latches click. The most common issue is mixing this registered ECC DIMM with unbuffered memory, which prevents the system from booting. Verify the platform requires registered ECC before fitting.

How it compares

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

Price $75.99
Cheaper than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $9.50 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameOWC
Part number2R1D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2133 (PC4 17000)
Memory
CAS latencyCL15
ECC supportYes
Buffer typeRegistered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo ThinkStation P500
Lenovo ThinkStation P700
Lenovo ThinkStation P900

Other versions of this model

5 more in the same range

Questions about this item

Does my Lenovo ThinkStation P500 need to support registered ECC DDR4 to use this module?

Yes, the P500 must accept 288-pin DDR4 2133MHz PC4-17000 CL15 1.2V registered ECC RDIMMs; standard desktop boards will not work.

Can I add this 8GB registered ECC RDIMM alongside unbuffered DDR4 already installed in my ThinkStation P700?

No, registered and unbuffered DDR4 cannot be mixed in the same system; all slots must use registered ECC modules.

How do I verify the module runs at 2133MHz CL15 after installing it in a ThinkStation P900?

Check the BIOS memory information or run a system tool such as CPU-Z; it should report DDR4-2133, CL15, 1.2V and registered ECC operation.

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