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Green 240-pin DDR3 ECC registered RDIMM module with black chips no heat spreader

OWC

OWC 16GB DDR3-1600 ECC Registered RDIMM 2Rx4 1.5V server RAM

SKU CH-J5ZJ-X1JNC

16GB DDR3-1600 ECC registered RDIMM for servers and workstations, CL11 1.5V

  • Total capacity16 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • CAS latencyCL11
  • Rated voltage1.5 V
  • Buffer typeRegistered
  • Memory rank2Rx4
  • ECC registered design protects data integrity in servers
  • 16GB capacity expands memory for virtualization workloads
  • DDR3-1600 speed matches PC3-12800 system requirements
  • 2Rx4 dual-rank layout increases memory density per slot
  • 5V operation meets JEDEC standard for registered DIMMs

OWC 16GB DDR3-1600 ECC RDIMM

This 16GB DDR3-1600 ECC Registered RDIMM operates at 1.5V with CL11 latency and a 2Rx4 rank configuration. It uses a 240-pin form factor designed for server and workstation platforms. The module is JEDEC and RoHS compliant and serves as a direct replacement for specific Dell part numbers including JDF1M and JR5VJ.

Suited for servers and workstations requiring

This memory fits systems that accept DDR3 Registered ECC RDIMMs. It will not work in standard desktop computers that require unbuffered non-ECC modules. It also cannot be mixed with unbuffered memory in the same system. Buyers needing unbuffered desktop RAM or a different voltage should look elsewhere.

Registered ECC with 2Rx4 organization

The registered buffer and ECC functionality are the defining specifications that determine compatibility. Only systems designed for Registered ECC DDR3 modules can use this part. Verify your platform supports Registered ECC before purchase.

How it compares

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

Price $44.99
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 $2.81 per GB
Cheaper than about 90% 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 the 240-pin DDR3 RDIMM fit a standard server DIMM slot?

Yes, the module uses the 240-pin DDR3 form factor and 1.5V voltage required by registered server slots.

What is the correct way to seat the registered ECC module so the system recognises all 16GB?

Align the notch, press firmly until both retention clips click, and populate slots in the order your motherboard manual specifies for registered memory.

When should the ECC registered DIMM be replaced to keep error correction reliable?

Replace the module if the system logs uncorrectable ECC errors or if memory diagnostics report persistent faults after reseating.

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