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Two black DDR3 UDIMM modules side by side, 240-pin, no heat spreaders

OWC

OWC 16GB (2x8GB) DDR3 1866 ECC Unbuffered UDIMM desktop RAM

SKU CH-REWJ-F51Y8

A 16 GB dual-channel DDR3 1866 kit with ECC unbuffered DIMMs for workstations, servers and NAS systems

  • Capacity16GB (2 x 8GB)
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.5V
  • ECCYes
  • Buffered/RegisteredUnbuffered

Capacity 16GB (2 x 8GB)

  • ECC protection guards data integrity in workstations and servers
  • 16 GB dual-channel kit expands multitasking headroom
  • DDR3 1866 speed with CL13 latency supports responsive performance
  • 5 V JEDEC standard voltage ensures broad platform compatibility
  • 240-pin unbuffered DIMM form factor fits select desktop, workstation and server slots

ECC UDIMM Kit for Workstations

This OWC kit provides 16 GB of DDR3 1866 memory in a matched pair of 8 GB modules. ECC unbuffered operation suits workstations, servers and NAS units that require error correction without registered signalling. Each DIMM runs at 1.5 V with CL13 timing on a standard 240-pin interface.

Upgrade from Non-ECC or Lower Capacity

Replacing non-ECC modules with this kit adds single-bit error correction for data integrity in critical workloads. The jump is worthwhile when the platform supports ECC unbuffered DDR3 and the application benefits from 16 GB in dual-channel configuration. JEDEC compliance ensures the modules meet the original equipment specifications.

Straightforward DIMM Installation

Installation follows the usual desktop DIMM procedure: power down, open the chassis, align the notch and press until the latches click. Common issues include mixing ECC with non-ECC modules, populating slots in the wrong order for dual-channel, or using a board that only accepts registered memory. Verify the manual before fitting.

Highlights

  • ECC protection guards data integrity in workstations and servers
  • 16 GB dual-channel kit expands multitasking headroom
  • DDR3 1866 speed with CL13 latency supports responsive performance
  • 5 V JEDEC standard voltage ensures broad platform compatibility
  • 240-pin unbuffered DIMM form factor fits select desktop, workstation and server slots

Specifications

BrandOWC
Part Number1E8D32R8016P
Capacity16GB (2 x 8GB)
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

Other versions of this model

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Questions about this item

Does the 240-pin DDR3 UDIMM fit my motherboard's memory slots?

The kit uses standard 240-pin DDR3 UDIMM form factor, so it fits any desktop, workstation or server board that accepts unbuffered DDR3 DIMMs at 1.5 V.

What is the correct way to seat the modules and which mistake should I avoid?

Align the notch with the slot key, press straight down until both retention clips click, and install the pair in the same-colour slots for dual-channel operation — the common error is stopping before the clips fully engage.

Will the ECC function work without extra setup, and what might need replacing later?

ECC is active whenever the platform supports it; no driver or BIOS toggle is required, and the modules themselves have no wear items — only a motherboard or CPU memory-controller failure would ever require replacement.

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