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Two black DDR3 UDIMM modules with gold contacts, no heat spreaders

OWC

OWC 8GB (2x4GB) DDR3 1600 CL11 ECC Unbuffered UDIMM Kit

SKU CH-GR3K-HH8DY

A dual-channel 8GB DDR3 1600 CL11 ECC unbuffered UDIMM kit for desktops, workstations and servers

  • Capacity8GB (2 x 4GB)
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 8GB (2 x 4GB)

  • ECC protection prevents data errors in critical workloads
  • Dual-channel kit delivers 8GB total capacity for multitasking
  • 1600MHz DDR3 speed matches system specifications
  • 5V JEDEC standard voltage ensures broad compatibility
  • 240-pin unbuffered UDIMM form factor fits desktop and workstation slots

Kit composition and purpose

This kit contains two 4 GB DDR3 modules for a total of 8 GB. The sticks are unbuffered ECC UDIMMs rated at PC3-12800 with CL11 timing and 1.5 V operation. They are built for desktops, workstations and NAS systems that require error-correcting memory.

Thermals and power in normal use

Without a heat spreader the modules run at standard JEDEC voltage and draw minimal power during typical workloads. Passive cooling inside a chassis with ordinary airflow keeps temperatures well within specification. Acoustic impact is negligible because the memory produces no active noise.

Behaviour under sustained load

Continuous read and write cycles at 1600 MHz maintain stable CL11 latency without throttling. ECC circuitry corrects single-bit errors on the fly, preserving data integrity during long rendering, compilation or file-server sessions. The dual-channel pair delivers consistent bandwidth for multi-threaded workloads.

Points forts

  • ECC protection prevents data errors in critical workloads
  • Dual-channel kit delivers 8GB total capacity for multitasking
  • 1600MHz DDR3 speed matches system specifications
  • 5V JEDEC standard voltage ensures broad compatibility
  • 240-pin unbuffered UDIMM form factor fits desktop and workstation slots

Caractéristiques

BrandOWC
Part Number1E6D31R8008P
Capacity8GB (2 x 4GB)
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCYes
Buffered/RegisteredUnbuffered
Multi-channel KitDual Channel Kit
ColorBlack
Heat SpreaderNo
Recommend UseWorkstations, Servers, and NAS Systems
LED ColorNone

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Questions sur cet article

Will this 8GB DDR3 kit fit my desktop motherboard?

The kit uses 240-pin DDR3 UDIMMs at 1.5V, the standard desktop form factor; verify your board supports DDR3 and unbuffered ECC before buying.

Can I mix these ECC modules with non-ECC memory already installed?

Mixing ECC and non-ECC DIMMs is not recommended; most platforms will disable ECC or refuse to boot, so populate all slots with identical ECC modules.

What does the CL11 rating mean for real-world responsiveness?

CL11 at 1600 MHz is the standard JEDEC latency for DDR3-1600; it delivers the baseline speed the platform expects without manual tuning.

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