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Two black 240-pin DDR3 UDIMM modules without heat spreaders

OWC

OWC 8GB (2x4GB) DDR3 1866 ECC Unbuffered UDIMM desktop RAM

SKU CH-47S3-56N9G

An 8 GB dual-channel DDR3 kit with ECC unbuffered modules running at 1866 MHz CL13 for desktops, workstations and servers

  • Capacity8GB (2 x 4GB)
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.5V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 8GB (2 x 4GB)

  • ECC protection prevents data errors in critical workloads
  • Dual-channel kit delivers 8 GB total capacity
  • 1866 MHz speed with CL13 latency for responsive operation
  • JEDEC-standard 1.5 V voltage ensures broad compatibility
  • Unbuffered 240-pin UDIMM fits desktop, workstation and server slots

DDR3 1866 ECC UDIMM Kit

This 8 GB kit contains two 4 GB DDR3 1866 PC3-14900 CL13 modules built for desktops, workstations and NAS systems. ECC unbuffered operation protects data integrity in environments where silent corruption is unacceptable. The 240-pin UDIMM form factor fits standard DDR3 slots. Voltage is set at 1.5 V.

JEDEC Compliance and Testing

JEDEC-standard and RoHS-compliant construction makes the upgrade warranty-safe for OEM systems. Every module is tested in-house to meet or exceed manufacturer specifications. The dual-channel kit delivers matched pairs for stable multi-channel performance. No heat spreaders or LEDs are included.

Straightforward DIMM Installation

Installing the modules is a typical DIY task: align the notch, press firmly until the retention clips click, then verify capacity in BIOS. Common issues include seating the DIMM incompletely or mixing with non-ECC modules, which disables error correction. The black PCB has no tall spreader, so clearance conflicts are rare.

Points forts

  • ECC protection prevents data errors in critical workloads
  • Dual-channel kit delivers 8 GB total capacity
  • 1866 MHz speed with CL13 latency for responsive operation
  • JEDEC-standard 1.5 V voltage ensures broad compatibility
  • Unbuffered 240-pin UDIMM fits desktop, workstation and server slots

Caractéristiques

BrandOWC
Part Number1E8D31R8008P
Capacity8GB (2 x 4GB)
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
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 memory fit a standard 240-pin DDR3 desktop motherboard?

Yes, the modules are 240-pin DDR3 UDIMMs, the standard form factor for desktop DDR3 slots.

My system requires ECC unbuffered memory — are these modules compatible?

Yes, each module is ECC unbuffered, matching the requirement for workstations and servers that need error-correcting unbuffered DIMMs.

What voltage do these modules run at, and will my board support it?

They operate at 1.5V, the standard voltage for DDR3, so any motherboard that supports DDR3 at 1.5V will run them.

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