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Green circuit board with black memory chips, gold edge connector, no heat spreader

OWC

OWC 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM Dell Precision 3930 5820

SKU CH-47GN-8XCPW

An 8GB DDR4 2666MHz CL19 module built for Dell Precision 3930 and 5820 workstations

  • Capacity8GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 8GB capacity adds multitasking headroom for Dell Precision 3930 and 5820 workstations
  • 2666MHz DDR4 speed with CL19 latency delivers responsive desktop performance
  • 2V low-voltage operation reduces power draw and heat in compatible systems
  • 288-pin unbuffered non-ECC UDIMM fits standard desktop DIMM slots without registration
  • Backward compatible with 2133MHz and 2400MHz systems for flexible upgrade paths

Dell Precision 3930/5820 memory upgrade

This 8GB DDR4 UDIMM is built for Dell Precision 3930 and 5820 workstations. It suits professionals who need a straightforward capacity increase for multitasking and larger project files. The module is validated for those specific systems.

288-pin non-ECC unbuffered installation

The stick fits standard 288-pin DDR4 slots and runs at 1.2V without ECC or registered buffering. It requires an available UDIMM slot on the motherboard and frees no additional resources beyond the added capacity. Backward compatibility with 2133MHz and 2400MHz bus speeds allows mixed-speed configurations.

Replaces slower or smaller factory modules

Upgrading from lower-capacity or lower-speed DDR4 DIMMs yields noticeable responsiveness gains when the workload exceeds the original memory ceiling. The jump is worth it when current modules limit the number of concurrent applications or the size of datasets you can keep in RAM.

Highlights

  • 8GB capacity adds multitasking headroom for Dell Precision 3930 and 5820 workstations
  • 2666MHz DDR4 speed with CL19 latency delivers responsive desktop performance
  • 2V low-voltage operation reduces power draw and heat in compatible systems
  • 288-pin unbuffered non-ECC UDIMM fits standard desktop DIMM slots without registration
  • Backward compatible with 2133MHz and 2400MHz systems for flexible upgrade paths

Specifications

BrandOWC
Part Number2U6D41R808GB
Capacity8GB
Type288-Pin DDR4 Non-ECC UDIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Compatible SystemDell Precision 3930
Dell Precision 5820

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What does CL19 at 2666 MHz mean for sustained workloads?

CL19 is the CAS latency at the rated 2666 MHz speed, which sets the minimum delay for each memory access during long sessions.

How much heat and power does this module produce when running all day?

It operates at 1.2 V with no heat spreader, so power draw and heat output stay low during continuous use.

What must my Dell workstation already have for this UDIMM to work?

A Dell Precision 3930 or 5820 with a free 288-pin DDR4 slot that accepts non-ECC unbuffered memory.

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