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Green rectangular circuit board with gold contacts and black memory chips, no heat spreader

OWC

OWC 8GB DDR4 2666MHz CL19 1.2V 288-Pin UDIMM for HP Pavilion 590/595

SKU CH-SF7V-YVBVC

8GB DDR4-2666 CL19 UDIMM validated for HP Pavilion 590 and 595 desktops

  • Capacity8GB
  • Type288-Pin DDR4 Non-ECC UDIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.2V
  • ECCNo
  • 8GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed matches HP Pavilion 590 and 595 specifications
  • CL19 latency and 1.2V voltage meet JEDEC standard timings
  • 288-pin unbuffered UDIMM fits desktop DIMM slots directly
  • Backward compatible with 2133MHz and 2400MHz systems for flexible upgrades

OWC 8GB DDR4 2666MHz UDIMM for HP Pavilion

This OWC module adds 8GB of DDR4 memory at 2666MHz to compatible HP Pavilion desktops. It uses a standard 288-pin unbuffered non-ECC design with CL19 latency and 1.2V operation. The part is built for HP Pavilion 590-p0558ng and 595-p0040ns systems.

Check your Pavilion model

Confirm the exact model number matches 590-p0558ng or 595-p0040ns. Verify how many 288-pin DIMM slots are populated and the maximum memory the motherboard accepts. The module runs at 2666MHz but will downclock to 2133MHz or 2400MHz if the platform requires it.

Replaces slower or smaller DDR4 DIMMs in supported

Swapping a 4GB or lower-speed stick for this 8GB CL19 module increases capacity and bandwidth for multitasking. The upgrade is worthwhile when the system currently runs near memory limits during everyday workloads.

Highlights

  • 8GB capacity adds multitasking headroom for everyday workloads
  • DDR4 2666MHz speed matches HP Pavilion 590 and 595 specifications
  • CL19 latency and 1.2V voltage meet JEDEC standard timings
  • 288-pin unbuffered UDIMM fits desktop DIMM slots directly
  • Backward compatible with 2133MHz and 2400MHz systems for flexible upgrades

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 SystemHP Pavilion 590-p0558ng
HP Pavilion 595-p0040ns

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Questions about this item

Does the 8GB DDR4 2666MHz UDIMM come alone or with extra parts?

The module ships as a single 8GB stick. No cables, brackets or tools are included. Installation only needs a free 288-pin DDR4 slot on the motherboard.

Should I pick the 2666MHz CL19 version or a faster kit?

This stick runs at 2666MHz CL19 and is backward compatible with 2133MHz and 2400MHz systems. Choose it when your HP Pavilion 590 or 595 specifies 2666MHz memory.

What does the 2666MHz rating deliver inside an HP Pavilion 590?

The 2666MHz speed matches the platform's native memory bus, giving the rated bandwidth without down-clocking. CL19 latency and 1.2V operation keep power draw low.

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