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Green rectangular DDR4 RDIMM module with gold contacts and black memory chips on both sides, no heat spreader

OWC

OWC 8GB DDR4 2666 CL19 1Rx8 ECC Registered RDIMM server RAM

SKU CH-HZBX-3DXAX

An 8 GB DDR4 ECC registered DIMM running at 2666 MHz with CL19 latency for servers and NAS systems

  • Capacity8GB
  • Type288-Pin DDR4 ECC RDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCYes
  • ECC registered design protects data integrity in servers and workstations
  • DDR4 2666 speed with CL19 latency keeps workloads responsive
  • 2 V operation reduces power draw for dense configurations
  • 288-pin RDIMM form factor fits standard server and NAS slots
  • Backward compatible with 2133 MHz and 2400 MHz systems

Server ECC RDIMM for Workstations and NAS

This 8GB DDR4 registered DIMM is built for servers, workstations and compatible NAS systems that require error-correcting memory. It operates at 2666MHz with a CL19 latency and 1.2V voltage. The module uses a 1Rx8 organisation and fits 288-pin DDR4 slots.

Sustained Load Stability with ECC Correction

Error-correcting code detects and corrects single-bit errors during continuous operation, preventing data corruption in critical workloads. Registered buffering reduces electrical load on the memory controller, allowing stable performance when all slots are populated. The JEDEC-standard PC4-21300 timing maintains consistency across extended duty cycles.

Registered Buffering Prevents Desktop Use

The registered design makes this module electrically incompatible with standard desktop motherboards that expect unbuffered memory. It cannot be mixed with unbuffered DIMMs in the same system. Buyers needing memory for consumer PCs or laptops must select unbuffered DDR4 instead.

Points forts

  • ECC registered design protects data integrity in servers and workstations
  • DDR4 2666 speed with CL19 latency keeps workloads responsive
  • 2 V operation reduces power draw for dense configurations
  • 288-pin RDIMM form factor fits standard server and NAS slots
  • Backward compatible with 2133 MHz and 2400 MHz systems

Caractéristiques

BrandOWC
Part Number2R6D41R808GB
Capacity8GB
Type288-Pin DDR4 ECC RDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Heat SpreaderNo

Questions sur cet article

How much power does the 1.2 V DDR4 2666 module draw when running continuously in a server?

The module operates at the standard DDR4 voltage of 1.2 V. Actual power draw depends on the server's memory controller and workload, but registered ECC DIMMs typically consume slightly more than unbuffered modules due to the register.

What must the system already have for this 288-pin ECC registered RDIMM to function?

A server, workstation or NAS motherboard with DDR4 RDIMM slots that support ECC registered memory. It will not work in standard desktop boards or alongside unbuffered DIMMs.

Will this CL19 2666 MHz stick run reliably alongside existing 2133 MHz or 2400 MHz modules?

Yes. The module is backward compatible with 2133 MHz and 2400 MHz speeds. When mixed, all DIMMs will run at the lowest common speed and the loosest timings present in the system.

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