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OWC

OWC 1R6D32R416GB 16GB DDR3 1600 ECC Registered RDIMM server RAM

SKU CH-H67Q-8SWG2

16 GB DDR3-1600 ECC registered RDIMM for servers, workstations and NAS

  • 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
  • 16 GB capacity expands memory for demanding workloads
  • DDR3 1600 speed matches PC3-12800 system requirements
  • CL11 latency at 1.5 V delivers stable operation
  • 240-pin 2Rx4 form factor fits compatible workstation slots

Server-grade ECC RDIMM for workstations

This 16GB DDR3 1600 module delivers registered ECC memory for servers, workstations, NAS devices and routers. It replaces specific HP part numbers including 672612081 and 684031001 with JEDEC-standard specifications. The module is not compatible with standard desktop computers or unbuffered memory configurations.

Sustained-load stability with error correction

Registered buffering reduces electrical load on the memory controller during continuous operation, while ECC detects and corrects single-bit errors in real time. CL11 latency at 1.5V provides reliable throughput for multi-user workloads, virtualization and long-running compute tasks without the soft-error accumulation seen in non-ECC alternatives.

Verify registered DIMM support before ordering

Your system must explicitly support DDR3 240-pin ECC registered RDIMMs; consumer motherboards and laptops will not accept this module. Check the vendor’s qualified-vendor list for 2Rx4 rank compatibility and confirm the platform requires 1.5V registered memory rather than unbuffered or low-voltage variants.

How it compares

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

Price $48.99
Cheaper than about 84% 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 $3.06 per GB
Cheaper than about 89% 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 1.5V DDR3 1600 module add noticeable heat or power draw when the server runs continuously?

At 1.5V and CL11 the registered DIMM draws standard DDR3 power; registered buffering adds minimal overhead so thermals stay comparable to other PC3-12800 ECC RDIMMs.

What must the system already provide for this 240-pin 2Rx4 registered ECC stick to function?

A workstation, server, NAS or router motherboard with DDR3 RDIMM slots that accept 2Rx4 registered ECC modules at PC3-12800 speed.

Can I keep older unbuffered DDR3 DIMMs installed alongside this registered 16GB module?

No — the manufacturer states registered memory cannot be mixed with unbuffered memory; all slots must use registered ECC DIMMs.

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