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Green circuit board with gold edge connector and black memory chips

OWC

OWC 16GB DDR3 1600 PC3-12800 CL11 2Rx4 240-pin 1.5V ECC Registered RDIMM for Lenovo 0A89483 server RAM

SKU CH-J0X4-PWDZW

16 GB DDR3 ECC registered RDIMM runs at 1600 MHz CL11 for Lenovo 0A89483 servers

  • Total capacity16 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity for server platforms
  • 16 GB capacity expands memory headroom for virtualisation
  • DDR3 1600 speed matches Lenovo 0A89483 specifications
  • JEDEC and RoHS compliance ensures warranty-safe upgrades

OWC 16GB DDR3 ECC Registered RDIMM

This OWC module provides 16GB of DDR3 1600 memory with CL11 latency and 1.5V operation. It uses a 240-pin RDIMM form factor with 2Rx4 organisation and built-in ECC registration. The part matches Lenovo 0A89483 specifications exactly.

For workstation and server upgrades only

Suitable for administrators extending the life of DDR3-based servers, workstations, NAS units or routers that require registered ECC memory. Not for standard desktop PCs or laptops, which cannot use registered modules. Buyers needing unbuffered memory or a different DDR generation must look elsewhere.

Fits DDR3 registered DIMM slots

Installs directly into 240-pin DDR3 RDIMM slots on compatible server or workstation boards. The registered buffer reduces electrical load on the memory controller, freeing headroom for larger total capacities. No heat spreader is fitted, so airflow in the chassis should be adequate for dense configurations.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 86% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $2.69 per GB
Cheaper than about 91% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number1R6D32R416 GB
Total capacity16 GB
Product type240-Pin DDR3 ECC RDIMM
Performance
Rated speedDDR3 1600 (PC3 12800)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.5 V

Questions about this item

Does this 240-pin DDR3 RDIMM require a server or workstation motherboard that supports ECC registered memory?

Yes, the module is DDR3 1600 ECC registered and will only function in systems designed for registered DIMMs; standard desktop boards cannot use it.

Can I mix this 2Rx4 registered DIMM with any unbuffered DDR3 modules already installed?

No, registered and unbuffered memory cannot be mixed; all slots must use registered ECC modules for the system to operate correctly.

After installation, how do I confirm the 16 GB module is running at PC3-12800 CL11 1.5V?

Check the BIOS memory information or an OS tool such as dmidecode; it should report 1600 MT/s, CL11 timings and 1.5 V for this DIMM.

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